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Importance des pneus abandonnés dans la prolifération d’Aedes aegypti en milieu urbain
Kone, Atioumouna
L’analyse montre que les pneus abandonnés représentent en moyenne 50% de l’ensemble des gîtes larvaires de la ville de Sassandra. Ils sont les plus productifs car 70% d’entre eux en moyenne contiennent des larves d’Aedes aegypti. Ainsi, ce travail met en évidence, le rôle prépondérant que jouent les pneus abandonnés dans la prolifération d’Aedes aegytpi dans la ville de Sassandra. Ainsi, la lutte antivectorielle prend une place de choix dans la lutte contre la fièvre jaune. Médecine d’Afrique Noire 2006, Vol. 53, No. 3, pp. 167-170 Hard copy available from: Médecine d'Afrique Noire.
Mycobacterium bovis Isolates from Tuberculous Lesions in Chadian Zebu Carcasses
Diguimbaye, Colette
"This slaughterhouse study in Chad shows higher proportions of Mycobacterium bovis isolates among Mbororo than Arabe zebu cattle. Spoligotyping shows a homogenetic population structure for M. bovis and lack of spacer 30, as were found in neighboring Cameroon and Nigeria. This finding suggests transborder and ongoing transmission between cattle." Emerging Infectious Diseases 2006, Vol. 12, No. 5, pp. Available online from: Emerging Infectious Diseases Download PDF from: Emerging Infectious Diseases
Seasonal epidemiology of ticks and aspects of cowdriosis in N’Dama village cattle in the Central Guinea savannah of Côte d’Ivoire
Knopf, Lea
In the Central Guinea savannah of Côte d’Ivoire, cattle breeding started only 30 years ago. The impact of parasitism on the overall health status and productivity of the trypanotolerant N’Dama cattle in this area is unknown. In close collaboration with national veterinary institutions and local farmers, we studied spectrum, burden and seasonal dynamics of ticks (including aspects of cowdriosis) on N’Dama village cattle. Preventive Veterinary Medicine 2002, Vol. 53, Issues 1-2, pp. 21-30 Available online from: ScienceDirect
Genetic Diversity in Mycobacterium ulcerans Isolates from Ghana Revealed by a Newly Identified Locus Containing a Variable Number of Tandem Repeats
Hilty, Markus
"The molecular typing methods used so far for Mycobacterium ulcerans isolates have not been able to identify genetic differences among isolates from Africa. This apparent lack of genetic diversity among M. ulcerans isolates is indicative of a clonal population structure. We analyzed the genetic diversity of 72 African isolates, including 57 strains from Ghana, by variable number of tandem repeat (VNTR) typing based on a newly identified polymorphic locus designated ST1 and the previously described locus MIRU 1. Three different genotypes were found in Ghana, demonstrating for the first time the genetic diversity of M. ulcerans in an African country. While the ST1/MIRU 1 allele combination BD/BAA seems to dominate in Africa, it was only rarely found in isolates from Ghana, where the combination BD/B was dominant and observed in all districts studied. A third variant genotype (C/BAA) was found only in the Amansie-West district. The results indicate that new genetic variants of M. ulcerans emerged and spread within Ghana and support the potential of VNTR-based typing for genotyping of M. ulcerans." Journal of Bacteriology 2006, Vol. 188, No. 4, p. 1462-1465 Available from: Journal of Bacteriology
Common Property Resource Management, Institutional Change and Conflicts in African Floodplain Wetlands
Haller, Tobias
Most contemporary discussions on African development since independence forty years ago emphasize the notion that Africa is still “mal parti”. Many show discontent for what has been achieved in this time, despite that “Africa works” as is suggested by Chabal and Daloz in their widely discussed book (1999). I will focus on the issue of sustainable development in Africa. This will be illustrated by the presentation of a common property resource management research project (on fisheries, pastures, wildlife, water for irrigation, and forests). The question of why the overuse of natural resources and conflicts over resources are occurring in modern day Africa is addressed here. This research project is called “Common Property Institutions and Power Relations: Resource Management, Change and Conflicts in African Floodplain Wetlands”. It focuses on six African floodplain wetlands in semi-arid zones (Internal Niger Delta in Mali, Hadejia-Jama'ara in Northern Nigeria, Logone Floodplain in Northern Cameroon, Pangani Floodplain in Tanzania, Okavango Delta in Botswana and Kafue Flats in Zambia (Haller 2001)) [...]. The African Anthropologist 2002, Vol 9, No.1, pp. 25-35 Available from: African Journals Online
Evaluation of the discriminatory power of variable number tandem repeat (VNTR) typing of Mycobacterium bovis strains
Hilty, Markus
The discriminatory power of variable number tandem repeat (VNTR) typing based on 16 known loci (12 MIRUs, 3 ETRs and VNTR 3232) was assessed for Mycobacterium bovis strains collected sequentially at the slaughterhouse of N’Djaména, Chad. Of 67 M. bovis strains analyzed, 67% were clustered. In this study, VNTR typing was highly discriminative with an overall allelic diversity (hoa) of 0.922. We defined five loci (ETR A, B, C and MIRU 26, 27) as highly (h > 0.25), two loci (MIRU 4, and VNTR 3232) as moderately (0.11 < h < 0.25) and three loci (MIRU 16, 20, 31) as poorly (0.01 < h < 0.11) discriminative. Six loci (MIRU 2, 10, 23, 24, 39, and 40) showed no polymorphism at all. VNTR typing of the five highly discriminative loci (h = 0.917) proved to be most appropriate for first line typing of M. bovis strains of Chad and superior than spoligotyping (hsp = 0.789). In contrast to Mycobacterium tuberculosis strains, a consensus on VNTR loci needs to be found for M. bovis strains. The selection of a generally agreed set of VNTR loci for molecular discrimination of M. bovis in different geographical settings is discussed. Veterinary Microbiology 2005, Vol. 109, Issues 3-4, pp. 217-222 Available from: ScienceDirect
Solid–liquid separation of faecal sludge using drying beds in Ghana
Cofie, Olufunke
This study investigated the possibility of recycling nutrients in human excreta and municipal solid waste for use in agriculture. It reports on the use of drying beds in separating solid and liquid fractions of faecal sludge (FS) so that the solids can be co-composted and the organic matter and part of the nutrients captured for urban agriculture... Water Research 2006, 40:1, pp. 75-82 Available Online from: Science Direct
Buruli Ulcer: Rapid Assessment of the Situation in Cameroon
Studer, Anja
Master's Thesis, University of Basel, Switzerland The objective of this study was to evaluate the importance and the geographical distribution of Buruli ulcer in Cameroon on the national level: using a rapid assessment procedure, areas at risk were identified and environmental characteristics of these areas analysed.
Urban malaria in the Sahel: prevalence and seasonality of presumptive malaria and parasitaemia at primary care level in Chad
Othnigué, Nadjitolnan
The objective of this study was to assess malaria prevalence rates and seasonal patterns among clinically diagnosed malaria cases at the level of primary care facilities in an urban Sahelian setting. Clinical diagnosis of malaria has a very low positive predicted value in this low endemicity urban setting, and its low specificity leads to inappropriate care for a large proportion of patients. This has a major impact on economic costs for health services and households. In the Sahel, systematic use of microscopy-based diagnosis and/or rapid diagnostic tests should be considered to appropriately manage malaria and non-malaria cases. Tropical Medicine & International Health 2006, Vol. 11, Issue 2, page 204 Available for purchase from: Blackwell Synergy
Epidémiologie moléculaire des premiers isolements de mycobactéries chez l'animal au Tchad
Schelling, Esther
"The first laboratory to culture mycobacteria was established in Chad to confirm the presence of bovine tuberculosis and to describe the distribution of M. tuberculosis complex strains in livestock and humans. Specimens were collected on condemned animal carcasses due to tuberculosis. Spoligotyping and analysis of Variable Numbers Tandem Repeats (VNTRs) have been used on 67 M. bovis strains. The prevalence of tuberculosis-like lesions at the slaughterhouse was 7.3%. More M’bororo than Arab zebus were condemned (p = 0.04), M’bororo carcasses were more often entirely condemned in comparison to a partial condemnation (p ≤ 0.001) and M. bovis was more often isolated from Mbororo carcasses than from Arab zebu (p = 0.004). [...]" "Le premier laboratoire de culture des mycobactéries a été établi au Tchad pour confirmer la présence de la tuberculose bovine chez le bétail et pour évaluer la répartition des souches du complexe Mycobacterium tuberculosis. Les prélèvements ont été réalisés sur des carcasses d’animaux saisis pour cause de tuberculose. Le typage moléculaie par spoligotypie et le typage des VNTR (séquences répétées en nombre variable) ont été réalisés avec 67 souches M. bovis du Tchad. La prévalence de lésions tuberculeuses à l’abattoir était de 7,3%. Davantage de carcasse de zébus M’bororos ont été saisies par rapport aux zébus Arabes (p = 0,04); une saisie totale en comparaison à une saisie partielle a été plus souvent effectuée chez les Mbororos (p ≤ 0,001) et M. bovis a été plus fréquemment isolé chez les zébus Mbororos que chez les Arabes (p = 0,004). [...]" Épidémiologie et Santé Animale 2005, No. 48, pp. 81-91 Available for download from: L'Association pour l'Étude de l'Épidémiologie des Maladies Animales
Human and Animal Health in Nomadic Pastoralist Communities of Chad
Schelling, Esther
PhD Thesis, University of Basel, Switzerland The health of nomadic pastoralists is influenced by factors specific to their way of life. Veterinary services provide vaccination against feared livestock diseases such as anthrax. Agents transmissible between livestock and humans (zoonotic agents) may have an important impact on the health status of pastoralists because they live in close contact to their animals. However, morbidity of nomadic pastoralists in Chad had not been documented and their everyday use of health services was virtually unknown. A research collaboration between veterinary and public health was implemented to evaluate morbidity of nomadic pastoralists and of their animals simultaneously and to test intersectoral pilot-interventions following the concept of “one medicine”.
Impact de la démoustication sur les populations d’Aedes aegypti de deux communes de la ville d’Abidjan (Port-Bouët et Yopougon), Côte d'Ivoire
Kone, Atioumouna
Devant les résultats nous pouvons conclure que les pulvérisation aériennes spatiales d'insecticides permettent de réduire les densités de moustique en général et d'Aedes aegypti en particulier mais que cette réduction est de courte durée. Cette réduction est beaucoup plus marquée sur les populations exophagues que d'endophagues d'où la nécessité de tenir compte de la bio écologie des moustiques lors de l'application de cette technique. Dakar Médical 2005, Vol. 50, No. 3, pp. 113-117 Download
Etude de la morbidité palustre à l’Hôpital Général d’Adiaké, Côte d’Ivoire de 1998 à 2000
Kone, Atioumouna
Notre travail est une étude rétrospective de la morbidité palustre sur 3 ans (de 1998 à 2000) dans un hôpital général situé en zone lagunaire (Adiaké). Il ressort de cette étude que le tiers (34,79 %) des patients ayant consulté présentait un paludisme et que plus de la moitié des hospitalisations étaient des cas de paludisme. Nous avons noté une légère prédominance féminine (52,11 %) en consultation. La population infanto-juvénile était la plus touchée tant en consultation qu’en hospitalisation avec respectivement 58,38 % et 54,97 % ; elle concerne surtout la tranche d’âge de 1 à 4 ans. Le mois de Juillet pendant ces trois années a enregistré le plus de cas de paludisme. Nous avons constaté que le paludisme se transmet toute l’année avec une légère prédominance à la grande saison des pluies. La principale complication du paludisme qui a occasionné une hospitalisation était l’anémie (82,62 %) qui avait touché les enfants de 0 à 15 ans dans 88, 29 % des cas et les adultes dans 11,71 % des cas. Le paludisme représentait la principale cause de décès en hospitalisation. Ces décès étaient dus dans 81,84 % à l’anémie. Médecine d'Afrique Noire 2005, No. 5203, pp. 188-192 Free online version available from: Médecine d'Afrique Noire. Hard copy available from: Médecine d'Afrique Noire.
Spatial risk prediction and mapping of Schistosoma mansoni infections among schoolchildren living in western Côte d'Ivoire
Raso, Giovanna
"The objectives of this study were (1) to examine risk factors for Schistosoma mansoni infection among schoolchildren living in western Côte d'Ivoire, and (2) to carry forward spatial risk prediction and mapping at non-sampled locations [...]. Results showed that age, sex, the richest wealth quintile, elevation and rainfall explained the geographical variation of the school prevalences of S. mansoni infection. The goodness of fit of different spatial models revealed that age, sex and socio-economic status had a stronger influence on infection prevalence than environmental covariates. The generated risk map can be used by decision-makers for the design and implementation of schistosomiasis control in this setting. If successfully validated elsewhere, this approach can guide control programmes quite generally." Parasitology 2005, Vol. 131, Issue 1, pp. 97-108 Available from: Cambridge Univeristy Press
Re-evaluating the burden of rabies in Africa and Asia
Knobel, Darryn L.
Rabies remains an important yet neglected disease in Africa and Asia. Disparities in the affordability and accessibility of post-exposure treatment and risks of exposure to rabid dogs result in a skewed distribution of the disease burden across society, with the major impact falling on those living in poor rural communities, in particular children. Bulletin of the World Health Organization 2005, Vol. 83, Number 5, pp. 321-400 Download from: The World Health Organisation
Serum Retinol of Chadian Nomadic Pastoralist Women in Relation to their Livestocks' Milk Retinol and beta-Carotene Content
Zinsstag, Jakob
Human serum retinol and livestock milk retinol levels were assessed as part of a study on the health status of Chadian nomadic pastoralists and their livestock in close partnership between Chadian public health and livestock institutions. Our study supports the use of goat and cow milk as an important source of vitamin A in pastoral nomadic settings. However, the levels still require to be complemented further by promoting green leafy vegetables, fruits, and supplements. International Journal for Vitamin and Nutrition Research 2002, 72(4): 221-228 Available from: Verlag Hans Huber
Urban agricultural land use and characterization of mosquito larval habitats in a medium-sized town of Côte d’Ivoire
Matthys, Barbara
"Urban agriculture is common across Africa and contributes to the livelihoods of urban dwellers. Some crop systems create suitable mosquito breeding sites and thus might affect malaria transmission. The purpose of this study was to identify, map, and characterize potential mosquito breeding sites in agricultural land use zones in a medium-sized town of western Côte d’Ivoire and to assess risk factors for productive Anopheles breeding sites. Two surveys were carried out; one toward the end of the rainy season and the second one during the dry season. [...] The highest Anopheles larval productivity was observed in rice paddies, agricultural trenches between vegetable patches, and irrigation wells. An indirect link could be established between the occurrence of productive Anopheles breeding sites and agricultural land use through specific man-made habitats, in particular agricultural trenches, irrigation wells, and rice paddies. Our findings have important bearings for the epidemiology and control of urban malaria in sub-Saharan Africa." Journal of Vector Ecology 2006, 31 (2), pp. 319-333 Download from: Journal of Vector Ecology
Moving from sustainable management to sustainable governance of natural resources
Rist, Stephan
"The present paper discusses a conceptual, methodological and practical framework within which the limitations of the conventional notion of natural resource management (NRM) can be overcome. NRM is understood as the application of scientific ecological knowledge to resource management. By including a consideration of the normative imperatives that arise from scientific ecological knowledge and submitting them to public scrutiny, ‘sustainable management of natural resources’ can be recontextualised as ‘sustainable governance of natural resources’. This in turn makes it possible to place the politically neutralising discourse of ‘management’ in a space for wider societal debate, in which the different actors involved can deliberate and negotiate the norms, rules and power relations related to natural resource use and sustainable development. [...]" Journal of Rural Studies 2007, Volume 23, Issue 1, pp. 23-37 Available from: ScienceDirect
Molecular epidemiology of mycobacteria
Hilty, Markus
PhD Thesis, University of Basel, Switzerland "One approach of molecular epidemiology of mycobacteria is the genotyping and comparison of DNA of infectious strains in order to monitor the transmission pathways of diseases. It is based on the assumption that patients infected with clustered strains are epidemiologically linked. Such results may help in understanding the modes of transmission and therefore in putting in place an adapted control strategy. [...] Therefore the overall aim of this study was to contribute to the development and refinement of innovative molecular typing tools in order to study Mycobacterium tuberculosis, bovis and ulcerans infections." Download
Species identification of non-tuberculous mycobacteria from humans and cattle of Chad
Diguimbaye, Colette
"In Chad, during a study on tuberculosis in humans and cattle, 52 non-tuberculous mycobacteria (NTM) strains were isolated. By means of INNO-LiPA, PRA-hsp65 amplification and sequencing of 16S rDNA, NTM species of 25/52 isolates were identified. M. fortuitum complex (8) was the most frequent species, followed by M. nonchromogenicum (4) and M. avium complex (4). PRA method could identify M. fortuitum 3rd variant among isolates derived from cattle specimens. This finding could confirm the existence of farcy in the Chadian cattle population as M. fortuitum 3rd variant and putitative pathogen M. farcinogenes can't be distinguished by the methods used in this study. Half of the NTM isolates could not be specified and we considered them as contaminants from the environment." Schweizer Archiv für Tierheilkunde 2006, Vol. 148, No. 5, pp. 251-256 Available to purchase from: Verlag Hans Huber
Potential of cooperation between human and animal health to strengthen health systems
Zinsstag, Jakob
"The WHO ministerial summit held in Mexico City, Mexico, on Nov 16–20, 2004, recognised the pivotal role of strengthened health systems in achieving the Millennium Development Goals (MDGs) in an equity-effective manner. Its resolutions encourage health systems research to include broad societal dimensions. One extension involves closer interaction between human and animal health, for which the US epidemiologist Calvin Schwabe coined the term “one medicine”, to focus attention on the similarity between human and veterinary health interests. [...]" The Lancet 2005, Vol. 366, Issue 9503, pp. 2142-2145 Available online from: The Lancet Download PDF from: The Lancet
Evaluation de la gestion communautaire des boues de vidange dans la Commune d’Arrondissement de Sahm-Notaire, Ville de Guédiawaye- Région de Dakar-Sénégal
Kassa, Mvoubou Félicien
Master's Thesis, Ecole Inter-Etats d’Ingénieurs de l’Equipement Rural de Ouagadougou, Burkina Faso Download
Les associations de pré-collecte des déchets à Ouagadougou, les cas de Wogodogo et Nonssin
Jean Richard, Raphael
Master's Thesis, Swiss Federal Institute of Technology Lausanne, Switzerland "La gestion des ordures ménagères dans le contexte africain et burkinabé manque d'organisation et de coordination, car le secteur des déchets solides n'est pas considéré comme prioritaire. Pourtant, les déchets présentent un risque réel pour la santé et l'environnement. Le Centre Régional pour l'Eau Potable et l'Assainissement (CREPA) a appuyé avec un soutien financier, technique et formatif des associations de quartier qui souhaitaient améliorer leur cadre de vie. Cette étude s'est penchée sur les deux premières associations assistées par l'Institution à Ouagadougou en 1993 et 1994. [...]" Download
Contribution à l’amélioration du système de gestion des ordures ménagères dans la commune de Fatick au Sénégal
Ndong, Ndiogou
Master's Thesis, Ecole Inter-Etats d’Ingénieurs de l’Equipement Rural de Ouagadougou, Burkina Faso "Cette étude a été faite dans le cadre du Projet d’Appui aux Collectivités Locales (PACOL) du Centre Régional pour l’Eau Potable et l’Assainissement (CREPA) dans la commune de Fatick au Sénégal. Elle propose des éléments d’ordre organisationnel et technique contribuant à la mise en place de stratégies pour une amélioration de la gestion des ordures ménagères dans la Commune. [...]" Download
Bovine tuberculosis: an old disease but a new threat to Africa
Ayele, Wuhib Y.
"Bovine tuberculosis (TB) is a disease characterised by progressive development of specific granulomatous le-sions or tubercles in lung tissue, lymph nodes or other organs. Mycobacterium bovis is the causative agent of the disease. Bovine species, including bison and buffaloes, are susceptible to the disease, but nearly all warm-blooded animals can be affected. All species are not equally susceptible to the disease; some are spill-over (end) hosts and others maintenance hosts. In Africa, bovine TB primarily affects cattle; however, infection in other farm and domestic animals, such as sheep, goats, pigs, dogs and cats, is not uncommon. Wild ruminants and carnivores are also affected and are the natural reservoirs of the infectious agent in the wild. Man is also susceptible to the disease, the highest risk groups being individuals with concomitant HIV/AIDS infection. In Africa, human TB is widely known to be caused by M. tuberculosis; however, an unknown proportion of cases are due to M. bovis. This infection in humans is underreported as a result of the diagnostic limitations of many laboratories in distinguishing M. bovis from M. tuberculosis. None of the national reports submitted to the OIE and WHO by African member states mention the importance of M. bovis in human TB cases. Consumption of unpasteurised milk and poorly heat-treated meat and close contact with infected animals represent the main sources of infection for humans. This review attempts to examine the impact of bovine TB on the health of animals and humans." The International Journal of Tuberculosis and Lung Disease 2004, Vol. 8, No. 8, pp. 924-937(14) Freely available from: Ingentaconnect
Approche novatrice des vaccinations en santé publique et en médecine vétérinaire chez les pasteurs au Tchad
Béchir, Mahamat
This report describes a network of public health care workers, veterinarians and nomadic pastoralists that was set up in Chad to increase vaccination coverage to nomadic children and women who had rarely been vaccinated before. The objectives of the project were to provide human vaccination in conjunction with existing veterinary services, to evaluate the feasibility and limitations of such campaigns, to determine what other services could be provided concurrently, and to estimate the savings for public health care cases in comparison with carrying out vaccination separately. The joint vaccination campaign approach is innovative, appreciated by nomadic pastoralists and less expensive than separate vaccination. By using the mobility of veterinarians in remote zones far from health care facilities, vaccination can be provided to nomadic children and women in countries with limited resources. Médecine Tropicale 2004, Vol. 64, No. 5, pp. 497-502 Download
Raw milk composition of Malian Zebu cows (Bos indicus) raised under traditional system
Bonfoh, Bassirou
Milk from Malian Zebu cows was analysed during the dry and hot season (March–June) in order to assess its composition and the components variation according to the presence of subclinical mastitis and supplementary feeding. The Zebu cow milk (n=30) was composed of 8 g/kg ash, 43 g/kg fat, 48 g/kg lactosemonohydrate, 37 g/kg proteins and 134 g/kg total solids. One-third of the cows tested positive to subclinical mastitis (white blood cell count >350,000/mL). Milk components were significantly affected by the somatic cell count (decrease of lactosemonohydrate, increase of fat and total solids PJournal of Food Composition and Analysis 2005, Vol. 18(1), pp. 29-38 Available from: ScienceDirect
Répartition de la morbidité dans trois communautés nomades du Chari- Baguirmi et du Kanem, Tchad
Daugla, Doumagoum Moto
Within the framework of an multidisciplinary research and action program, morbidity patterns were assessed in three nomadic communities in Chad. A total of 1092 women, men and children were interviewed and examined in the course of three surveys carried out by a physician during the dry and rainy season. Nomads reporting no health problems were rare. Tuberculosis was suspected in 4,6 % of adults after clinical examination and bronchopulmonary disorders in children less than five years of age. Febrile diarrhea was more prevalent during the wet season when access to clean drinking water was more difficult. Simple malaria was rarely diagnosed in Arabs during the dry season. In contrast simple malaria was frequent in Fulani who stay in the vicinity of Lake Chad during the dry period. Protein-energy malnutrition was observed in only 3 of 328 children younger than 15 years of age. Médecine Tropicale 2004, Vol. 64, No. 5, pp. 469-473 Download
A la recherche des déterminants institutionnels du bien-être des populations sédentaires et nomades dans la plaine du Waza-Logone de la frontière camerounaise et tchadienne
Fokou, Gilbert
"Cette contribution présente les articulations d’une étude actuellement en cours dans la région du Logone et Chari au Cameroun et dont le but est d’oeuvrer pour l’élaboration des savoirs et des connaissances pour le développement pastoral. De nombreux groupes de populations sédentaires et nomades vivent dans cette localité et dépendent des plaines inondées du Sud du lac Tchad pour leur subsistance. Or, les ressources naturelles connaissent de grandes variations saisonnières et deviennent parfois la propriété des groupes sédentaires. De ce fait, les éleveurs nomades éprouvent de nombreuses difficultés pour accéder non seulement aux pâturages et à l’eau, mais aussi aux services de santé de qualité (centres hospitaliers, médicaments efficaces). L’ambition ici est de définir de nouvelles conditions institutionnelles d’accès aux soins de santé pour les populations sédentaires et nomades. En fait, la plupart des problèmes auxquels sont confrontés les nomades de nos jours seraient dus à l’inadaptation des règles formelles en vigueur aux stratégies de survie des populations rurales. Celles mises en place à l’époque pré-coloniale ne sont plus opérationnelles. L’on pourrait conclure, sous forme d’hypothèse à vérifier, que la définition de nouveaux cadres institutionnels de gestion des ressources naturelles pourrait contribuer à l’amélioration des conditions de santé des pasteurs nomades." Médecine Tropicale 2004, Vol. 64, No. 5, pp. 1-5 Download
Les herpès génitaux au dispensaire anti-vénérien de l’institut national d’hygiène publique d’Abidjan
Tiembré, I.
"Notre étude réalisée au dispensaire antivénérien (DAV) de l’Institut National d’Hygiène Publique d’Abidjan avait pour objectif d’étudier les cas d’herpès génital reçus et pris en charge dans ce service de janvier 1994 à juillet 2000. Nous avons retrouvé 250 cas d’herpès génital sur un total de 18 069 consultants soit une prévalence globale de 1,4 %. Les patients présentant l’herpès génital étaient en majorité des hommes (91 %); Célibataires dans (70 %) dont l’age était compris entre 20 et 39 ans (88 %) et exerçant un métier dans 63,70 % des cas. Les principaux sièges des lésions étaient le sillon balano-prépucial chez l’homme (64 %) et chez la femme au niveau des grandes lèvres (71 %). 62 % des patients avaient consulté pour primo-infection contre 38 % de récurrence (2 à 4 chez le même patient). L’association herpès génital avec les autres Infections Sexuellement Transmissibles a été retrouvée. Il ressort de cette étude que l’herpès génital occupe une place non négligeable dans les consultations au dispensaire antivénérien de l’Institut National d’Hygiène Publique, et l’évolution est marquée par plusieurs récurrences chez le même malade." Médecine d’Afrique Noire 2006, Vol. 53, No. 2, pp. 79-82 Hard copy available from: Médecine d'Afrique Noire PDF Download
Research for Sustainable Development: Foundations, Experiences, and Perspectives
Wiesmann, Urs
Achieving sustainable development requires knowledge-based and value-conscious social, political, and economic decisions and actions at multiple levels. Research aiming to support sustainable development must co-produce knowledge at the interfaces between disciplines, between science and society, between knowledge cultures in the global North, South, and East, and between global visions and local realities, while remaining rooted in solid disciplinary foundations. Research for Sustainable Development presents 29 articles in which interdisciplinary teams reflect on the foundations of sustainability-oriented research, on concepts, tools, and approaches to overcome the challenges of such research, and on specific issues of sustainable development. For the print version, please send your order to: (price: CHF 45.00 / EUR 30.00, excluding postage) Download Book (8 MB) Download Flyer (100 KB)
The effect of irrigated urban agriculture on malaria, schistosomiasis and soil-transmitted helminthiasis in different settings of Côte d’Ivoire
Matthys, Barbara
PhD Thesis, University of Basel, Switzerland For further information please contact the author
La vulnérabilité des citadins à Abidjan en relation avec le palu. Les risques environnementaux et la commoditization agissant à travers le palu sur la vulnérabilité urbaine
Granado, Stefanie
The article aims to better understand the relation between urban vulnerability, environmental risks, and commoditization in regard to palu in Abidjan (Côte d’Ivoire). This research in medical anthropology analyses the local illness palu (abbreviation of the paludisme, e.g. malaria), a bodily experience of non-specific symptoms. Environmental risks are closely linked to palu. They are locally understood as a cause of palu, which, as the illness becomes a concrete bodily experience, offer a possibility of acting upon and addressing these risks. The patient does have the possibility of treating its palu with remedies. Therefore, commoditization of drugs not only represents a source of vulnerability but also offers a possibility to face persisting environmental risks. Vulnerability and its attached meanings are a dynamic concept. Unfortunately, commoditization of drugs implies high risks of over- or mistreatment. In French VertigO - la revue électronique en sciences de l'environnement hors série 3 Download
"En ville, chacun est dans son chacun"
Bossart, Rita
PhD Thesis, University of Basel, Switzerland For further information please contact the author
Combining photochemical and biological processes for the treatment of potential Endocrine Disrupting Chemicals (EDC) in water
Kenfack, Simeon
PhD Thesis, EIER, Burkina Faso For further information, please contact the author
Exclusion, vulnerability, poverty and AIDS
Kablan, Cléopâtre
PhD Thesis, Université de Cocody, Côte d'Ivoire For further information please contact the author
”It is the palu that tires me.”
Granado, Stefanie
PhD Thesis, University of Basel, Switzerland For further information please contact the author
In the shadow of the tents
Münch, Anna
PhD Thesis, University of Bern, Switzerland For further information please contact the author
Milk consumption patterns in an area with traditional milk production.
Hetzel, M.
Revue Africaine de Santé et de Productions Animales 3(3-4):174-177.
Comment combattre les inégalités en matière de santé?
Wyss, Kaspar
In: Schneider J, Roost Vischer L, Péclard P. editors. 2003.Werkschau Afrikastudien 4 - Le forum suisse des africanistes 4, Schweizerische Afrikastudien - Etudes africaines suisses. Münster, LIT Verlag, pp. 151-167 Order from: LIT Verlag
“It was hard to come to mutual understanding…” – The multidimensionality of social learning processes concerned with sustainable natural resource use in India, Africa and Latin America
Rist, Stephan
Sustainable natural resource use requires that multiple actors reassess their situation in a systemic perspective. This can be conceptualised as a social learning process between actors from rural communities and the experts from outside organisations. A specifically designed workshop provided the background for evaluating the potentials and constraints of intensified social learning processes. Case studies in rural communities in India, Bolivia, Peru and Mali showed that changes in the narratives of the participants of the workshop followed a similar temporal sequence relatively independently from their specific contexts. Social learning processes were found to be more likely to be successful if they 1) opened new space for communicative action, allowing for an intersubjective re-definition of the present situation, 2) contributed to rebalance the relationships between social capital and social, emotional and cognitive competencies within and between local and external actors. Journal of Systemic Practice and Action Research 19(3):219-237. Download from: SpringerLink
Nachhaltige Entwicklung in Afrika: globale Agenda und lokales Handeln
Hurni, Hans
In: Bearth, Barbara Becker, Rolf Kappel, Gesine Krüger, Roger Pfister, editors. 2007. Thomas Afrika im Wandel. vdf Hochschulverlag AG, ETH Zürich, pp. 123-136 Order from: vdf Hochschulverlag AG
Santé et vulnérabilité des populations défavorisées de l'Afrique de l'Ouest. Etudes de cas en Côte d'Ivoire, Mauritanie et au Tchad.
Wyss, Kaspar
Les articles dans cet ouvrage collectif sont regroupés autour de trois piliers de la notion vulnérabilité : (1) la monnayabilité/marchandisation (anglais «commoditization»), (2) les risques environnementaux («environmental hazards»), et (3) fragmentation sociale. À la suite de la présentation du cadre conceptuel emprunté par l’équipe de recherche, chacune des notions est reprise par une série d’articles. Enfin, le dernier chapitre établit une synthèse des différents chapitres précédents tout en élargissant la notion de vulnérabilité et son lien avec la santé urbaine. VertigO - la revue canadienne et électronique en sciences de l'environnement hors série 3: 1-2. Download
Owner valuation of rabies vaccination of dogs, Chad
Dürr, Salome
Emerg Infect Dis 14:1650-1652. Download
Accords et conflits d?intérêts dans la gestion de la gare routière Pétersen de Dakar
Ndiaye, El Hadji Mamadou
In: Chenal J, Pedrazzini Y, Cissé G, Kaufmann V, éditeurs. Quelques rues d?Afrique. Observation et gestion de l?espace public à Abidjan, Dakar et Nouakchott. Lausanne : Les éditions du Lasur, pp 81-92. For more information, click here
Access to Health Care among Transhumant Fulani Pastoralists in Mauritania: Using the Health Access Livelihood Approach
Corradi, Corinne
The focus of this study was set on pastoralist's livelihood capitals as well as qualitative dimensions of access. Available resources were identified and impeding factors when mobilising those were described. The financial means for health care were found to be limited by pastoralists themselves, despite the possession of cattle and a milk selling contract to a dairy plant. Further, insufficient and unreliable transport possibilities, as well as certain shortcomings in the quality of health services were pointed out by pastoralists. Mutual understanding and communication between Fulani pastoralist and health care personnel was also found to be insufficient and impeding for accessing health care. Limited access was also related to economic structures on the market, social norms within Fulani society and individual strategies, depending for example on pulaaku, the Fulani code of conduct. The lack of infrastructure and medical supplies further did not contribute to the utilisation of health services, either. Master's Thesis at University of Zurich Download
Les chemins de la "reconversion autoritaire" en Angola
Péclard, Didier
Politique Africaine 110: 5-20. Download
Assainissement environnemental en milieu urbain
Koffi Kouame, Parfait
MSc thesis at Université de Cocody (Côte d'Ivoire) Download
Analysis of Deficiencies in the Management of Urban Drainage and Solid and Liquid Waste in the Slums of Yopougon (Abidjan, Ivory Coast):
Dongo, Kouassi
The purpose of this study was to contribute to syndrome mitigation related to deficiencies in the management of urban drainage and solid and liquid waste in Abidjan’s informal settlements in order to assist in improving living conditions of these populations. The study focuses on solid and liquid waste management in 6 informal settlements (Doukouré, Yaoséhi, Mami Faitai, Yamoussoukro, Gbinta and Niangon Continu) which are located along a main drainage channel. Dongo K. 2006. Analysis of Deficiencies in the Management of Urban Drainage and Solid and Liquid Waste in the Slums of Yopougon (Abidjan, Ivory Coast): GIS Mapping, Modelling, and Social Anthropology Approaches [PhD thesis]. Abidjan, Cote d'Ivoire: Université de Cocody. Download
"In the city, everybody only cares for himself"
Bossart, Rita
"Various studies on African solidarity, survival strategies and the 'therapy man agement group' [J. M. Janzen (1978) The Quest for Therapy in Lower Zaire, Berkeley, Los Angeles & London: University of California Press] have suggested that institutionalized relationships in the form of networks or groups afford an individual access to resources, also in case of illness. My study reconsiders these arguments in ethnographic research about everyday illness management. It focuses on a heterogeneous urban neighbourhood in Abidjan and analyses who offers help to whom, and what kind of help people offer to one another. The findings show that social networks play an important but at the same time restricted role in illness management. The main source of assistance in response to affliction is household members. Apart from emotional and moral support, relatives living outside the household and non-kin play only a minor role. The social network offers help only sporadically, and very often the sick person has to ask friends and family several times before she or he receives financial or practical support. The emphasis given to social networks in the existing literature is often overestimated, at least in the case of illness. These findings implicate the importance of strengthening informal and formal security systems, especially in an urban context of economic hardship and political insecurity." Anthropology & Medicine 2003, Vol. 10, No. 3, pp. 343-359 Available from: Informaworld
Effect of repeated application of microbial larvicides on malaria transmission in central Côte d'Ivoire
Tchicaya, Emile S
Journal of the American Mosquito Control Association 25(3):382-385. Download
Santé, pratiques sexuelles et VIH/SIDA chez les adolescents dans les écoles en milieu urbain au Tchad
Nodjiadim, Abdias Laoubaou
Master's Thesis, Université Marc Bloch de Strasbourg II, Strasbourg, France "Notre étude tente de comprendre les comportements, pratiques et attitudes des jeunes dans deux établissements scolaires au Tchad vis à vis de la sexualité et du VIH/SIDA et répond aux objectifs suivants : • Analyser les perceptions, attitudes et pratiques que les jeunes en milieu scolaire ont de la sexualité et des facteurs de risques d’infection à VIH ; • Identifier les comportements à risques chez les adolescents en milieu scolaire et les problèmes de santé sexuelle auxquels ils sont confrontés ; • Déterminer leur dynamique relationnelle en matière d’engagement pour un changement de comportement." Download
Palu - eine Metapher im Alltag Abidjans (Côte d'Ivoire)
Granado, Stefanie
Bodily experiences, reported causes and curing strategies against palu (paludisme, malaria) as embodied metaphors in Abidjan, Côte d'Ivoire. Tsantsa 2005, 10: pp. 157-161 Download
Molecular Characterization and Drug Resistance Testing of Mycobacterium tuberculosis Isolates from Chad
Diguimbaye, Colette
"The molecular characterizations of the first 40 Mycobacterium tuberculosis isolates from Chad revealed a high proportion of isolates of the Cameroon family (33%), of which one isolate showed a monodrug resistance. In total, 9/33 (27%) isolates were resistant to isoniazid. The implications of these findings are discussed." Journal of Clinical Microbiology 2006, Vol. 44, No. 4, pp. 1575-1577 Available from: Journal of Clinical Microbiology
Wiederverwenden statt verschwenden / Recycler au lieu de jeter
Zurbruegg, Christian
This article discusses alternative sanitation systems enabling the reuse of human waste (organic solid waste, urine, faeces) in agriculture. Case studies in Mexico, China, and Ghana illustrate how the concept of closing nutrient cycles can be succesfully implemented. Helvetas Partnerschaft 2006, Number 183, pp.16-18 Download from Helvetas: German version / French version
Synergy between public health and veterinary services to deliver human and animal health interventions in rural low income settings
Schelling, Esther
This article argues that the collaboration between public health and veterinary services could increase coverage of essential health interventions for people and livestock in remote rural areas. British Medical Journal BMJ 2005, No. 331, pp. 1264-1267 Download from: British Medical Journal BMJ
Potentials of vertical flow constructed wetlands for faecal sludge dewatering in Subsaharian countries
Kengne Noumsi, Ives Magloire
PhD Thesis, University of Yaoundé, Cameroon For further information please contact the author
Effect of washing and disinfecting containers on the microbiological quality of fresh milk sold in Bamako (Mali)
Bonfoh, Bassirou
"The present study aimed to improve the microbiological quality of the milk, from the cow’s udder to the selling point by container washing and disinfecting. The total counts (TC), Enterobacteriaceae counts (EBC) were used as quality indicators. [...] The study suggests that in milk production area, besides udder infection and water quality, hygiene behaviour with respect to hand washing, container’s cleaning and disinfection are the key areas that remain of relevance to milk hygiene intervention." Food Control 2006, Vol. 17, Issue 2, pp. 153-161 Available from: ScienceDirect
VIH/sida, genre et vulnérabilité
Kablan, Cléopâtre
"L'une des préoccupations majeures qui apparaît lorsqu'on s'intéresse au VIH/sida dans les pays du sud, est celle de la vulnérabilité des femmes infectées. Face à cette vulnérabilité, quelles réponses une association de femmes vivant avec le VIH/sida peut-elle apporter ? Pour répondre à cette question, nous avons mené une enquête de terrain auprès d'une association de femmes vivant avec le VIH/sida à Abidjan. Cette enquête qui a combiné approche quantitative et approche qualitative visait à cerner les réponses de l'association face aux risques auxquels sont exposées ces femmes. Les résultats indiquent que face à la vulnérabilité des femmes qui se traduit soit par une rupture des liens sociaux soit par le silence imposé par le risque d'une telle rupture, les soutiens moral, matériel et financier constituent les principales actions menées par l'association." VertigO - la revue électronique en sciences de l'environnement 2006, hors série 3, Article 6 Download PDF from: VertigO
Vulnérabilité et résilience des populations riveraines liées à la pollution des eaux lagunaires de la métropole d'Abidjan, Côte d'Ivoire
Koné, Brama
"La lagune d'Abidjan est polluée par les déchets urbains. Les populations périurbaines, riveraines de cette lagune sont exposées à la pollution. L'étude porte sur l'évaluation des aspects de vulnérabilité et de résilience des populations exposées. Neuf "focus groups" ou groupes de discussion ont été réalisés sur trois sites qui bordent la lagune. Les populations étudiées se disent victimes de "la ville". Les aspects de leur vulnérabilité rapportés par elles sont entre autres les mauvaises odeurs qui émanent des eaux lagunaires, les mouches et moustiques qui se multiplient en lagune et qui leur apportent des maladies comme le paludisme et les diarrhées, les démangeaisons de corps dont les pêcheurs se plaignent. En ce qui concerne les aspects de résilience, des actions individuelles d'entretien des berges lagunaires sont menées par endroit. Le capital financier, humain et social des malades ou de leur famille joue un rôle important dans leur résilience en cas de maladie." VertigO - la revue électronique en sciences de l'environnement 2006, hors série 3, Article 5 Download PDF from: VertigO
Costs attributable to AIDS at household level in Chad
Wyss, Kaspar
"This paper assesses the economic costs of AIDS at the household level in Chad, one of the poorest countries in the world. One hundred and ninety-three AIDS patients living in four different regions were found by case identification at hospital level and through community based organizations providing psycho-social relief. They were matched by age, sex, professional category and zone of residence with controls. Costs were evaluated through a standard questionnaire. Costs at household level attributable to AIDS up to death were US$836 per case. Costs related to productivity losses made up 28% of total costs. More than half of total costs (56%) were health care related expenditures, and funeral costs contributed 16%. AIDS cases relied more often on borrowing and the selling of household assets than controls for treatment. Household expenditures of AIDS cases were much higher than control households mainly due to health related expenditure. The response of concerned families to HIV/AIDS implies high costs and for most households, especially in low-income settings, the consequences of AIDS are devastating. Innovative strategies on how best to assist households are thus requested and may include the strengthening of care and treatment services being offered to AIDS cases." AIDS Care 2004, Vol. 16, No. 7, pp. 808-816 Available from: Informaworld
Taux sérique de rétinol chez les femmes nomades pastoralistes tchadiennes en relation avec la teneur en rétinol et en carotène dans le lait de leur bétail
Zinsstag, Jakob
"Human serum retinol and livestock milk retinol levels were assessed as part of a study on the health status of Chadian nomadic pastoralists and their livestock in close partnership between Chadian public health and livestock institutions. Of the examined women (n = 99), 43% (95% CI 33 – 54 %) were retinol deficient (levels from 0.35 ?mol/L to 0.7 ?mol/L) and 17% (95% CI 10 - 26 %) severely deficient (Médecine Tropicale 2004, Vol. 64, No. 5, pp. 478-481 Download
Prioritization of prevention activities to combat the spread of HIV/AIDS in resource constrained settings
Hutton, G.
"In Chad, as in most sub-Saharan Africa countries, HIV/AIDS poses a massive public health threat as well as an economic burden, with prevalence rates estimated at 9% of the adult population. In defining and readjusting the scope and content of the national HIV/AIDS control activities, policy makers sought to identify the most cost-effective options for HIV/AIDS control. The cost-effectiveness analysis reported in this paper uses a mixture of local and international information sources combined with appropriate assumptions to model the cost-effectiveness of feasible HIV prevention options in Chad, with estimates of the budget impact. The most cost-effective options at under US$100 per infection prevented were peer group education of sex workers and screening of blood donors to identify infected blood before transfusion. These options were followed by mass media and peer group education of high risk men and young people, at around US$500 per infection prevented. Anti-retroviral therapy for HIV infected pregnant women and voluntary counselling and testing were in the order of US$1000 per infection prevented. The paper concludes with recommendations for which activities should be given priority in the next phase of the national HIV/AIDS control programme in Chad." The International Journal of Health Planning and Management 2003, Vol. 18, No. 2, pp. 117-136 Available from: Wiley InterScience
Incidence of canine rabies in N’Djaména, Chad
Kayali, U.
"This work describes for the first time the incidence risk of passively reported canine rabies, and quantifies reported human exposure in N’Djaména (the capital of Chad). To diagnose rabies, we used a direct immunofluorescent-antibody test (IFAT). From January 2001 to March 2002, we were brought 34 rabies cases in dogs and three cases in cats. Canine cases were geographically clustered. The annual incidence risk of canine rabies was 1.4 (95% CI: 1.2, 1.7) per 1000 unvaccinated dogs. Most of the rabid dogs were owned—although free-roaming and not vaccinated against rabies. Most showed increased aggressiveness and attacked people without being provoked. Eighty-one persons were exposed to rabid dogs and four persons to rabid cats (mostly childrenPreventive Veterinary Medicine 2003, Vol. 61, Issue 3, pp. 227-233 Available from: ScienceDirect
An Urban Monitor as support for a participative management of developing cities
Repetti, Alexandre
"Urban management is a complex process, which requires a sizeable information base and a large coordination between the actors who are managing the city. In developing countries, this management is made even more difficult by a lack of financial means and technical skills. For this reason among others, the classical instruments for planning are inefficient. Starting from this fact, this paper proposes a participative planning and management tool, developed through a concrete case study: the city of Thiès, in Senegal. Participation, individual capacities and coordination have been identified as key factors for improving the efficiency of the system of actors in charge of the urban management. Therefore, the proposed method focuses on information, communication and training. In parallel, an Urban Monitor (participative system of geographical information and indicators) has been developed and implemented, for an improvement of the information and communication structuring. This original approach allows combining the concepts of Research Action Training with participative methods and the new information and communication technologies. Based on a dynamic and geographical view of the urban planning, it integrates tools adapted to the contextual specificities. Through these original aspects, it opens great perspectives in the fields of participative urban management and the implementation of good governance." Habitat International 2003, Vol. 27, No. 4, pp. 653-667 Available from: ScienceDirect
Brucellosis and Q-fever seroprevalences of nomadic pastoralists and their livestock in Chad
Schelling, Esther
"As a part of a research-and-action partnership between public health and veterinary medicine, the relationships between the seroprevalences of brucellosis and Q-fever in humans and livestock were evaluated in three nomadic communities of Chad (Fulani cattle breeders, and Arab camel and cattle breeders). Nomad camps were visited between April 1999 and April 2000. A total of 860 human and 1637 animal sera were tested for antibodies against Brucella spp., and 368 human and 613 animal sera for Coxiella burnetii. The same indirect ELISA was used for livestock and human sera, and the test characteristics for its use on human sera were evaluated. Twenty-eight people were seropositive for brucellosis (seroprevalence 3.8%). Brucella seroprevalence was higher in cattle (7%) than other livestock, and brucellosis seropositivity was a significant factor for abortion in cattle (OR=2.8). No correlation was found between human brucellosis serostatus and camp proportions of seropositive animals. [...]" Preventive Veterinary Medicine 2003, Vol. 61, No. 4, pp. 279-293 Available from: ScienceDirect
Effect of an armed conflict on human resources and health systems in Côte d'Ivoire
Betsi, Alain Nicolas
"In September 2002, an armed conflict erupted in Côte d'Ivoire which has since divided the country in the government-held south and the remaining territory controlled by the 'Forces Armées des Forces Nouvelles' (FAFN). There is concern that conflict-related population movements, breakdown of health systems and food insecurity could significantly increase the incidence of HIV infections and other sexually-transmitted infections, and hence jeopardize the country's ability to cope with the HIV/AIDS epidemic. Our objective was to assess and quantify the effect this conflict had on human resources and health systems that provide the backbone for prevention, treatment and care associated with HIV/AIDS. We obtained data through a questionnaire survey targeted at key informants in 24 urban settings in central, north and west Côte d'Ivoire and reviewed relevant Ministry of Health (MoH) records. We found significant reductions of health staff in the public and private sector along with a collapse of the health system and other public infrastructures, interruption of condom distribution and lack of antiretrovirals. On the other hand, there was a significant increase of non-governmental organizations (NGOs), some of which claim a partial involvement in the combat with HIV/AIDS. The analysis shows the need that these NGOs, in concert with regional and international organizations and United Nations agencies, carry forward HIV/AIDS prevention and care efforts, which ought to be continued through the post-conflict stage and then expanded to comprehensive preventive care, particularly antiretroviral treatment." AIDS Care 2006, Vol. 18, No. 4, pp. 356-365 Available to purchase from: Informaworld
Africa’s development and its challenges in the health sector: medical, social and cultural dimensions
Cissé, Guéladio
In: Thomas Bearth, Barbara Becker, Rolf Kappel, Gesine Krüger, Roger Pfister, editors. 2007. Afrika im Wandel. vdf Hochschulverlag AG, ETH Zürich. Order from: vdf Hochschulverlag AG
Access to Natural Resources and the Question of Autochthony in West Africa
Bonfoh, Bassirou
Poster presented at the International Conference on Research for Development (ICRD). 2-4 July 2008, Berne, Switzerland. Download
Molecular characterisation of Mycobacterium bovis isolated from cattle slaughtered at the Bamako abattoir in Mali
Müller, B
Two groups of M. bovis were detected in cattle slaughtered at the Bamako abattoir. The spoligotype pattern of the first group has similarities to strains previously observed in Chad, Cameroon and Nigeria. The additional absence of spacer 6 in the majority of these strains suggests a Mali specific clone. The spoligotype patterns of the remaining strains suggest that they may have been of European origin. BMC Veterinary Research 4:26. Download
Nouakchott la ville nouvelle
Chenal, Jerome
In: Chenal J, Pedrazzini Y, Cissé G, Kaufmann V, éditeurs. Quelques rues d’Afrique. Observation et gestion de l’espace public à Abidjan, Dakar et Nouakchott. Lausanne : Les éditions du Lasur, pp 33-48. For more information, click here
Dakar la ville double
Chenal, Jerome
In: Chenal J, Pedrazzini Y, Cissé G, Kaufmann V, éditeurs. Quelques rues d’Afrique. Observation et gestion de l’espace public à Abidjan, Dakar et Nouakchott. Lausanne : Les éditions du Lasur, pp 65-80. For more information, click here
Multiple parasite infections and their relationship to self-reported morbidity in a community of rural Côte d'Ivoire
Raso, Giovanna
"Concomitant parasitic infections are common in the developing world, yet most studies focus on a single parasite in a narrow age group. We investigated the extent of polyparasitism and parasite associations, and related these findings to self-reported morbidity. [...] Our data confirm that polyparasitism is very common in rural Côte d'Ivoire and that people have clear perceptions about the morbidity caused by some of these parasitic infections. Our findings can be used for the design and implementation of sound intervention strategies to mitigate morbidity and co-morbidity." International Journal of Epidemiology 2004, Vol. 33, No. 5, pp. 1092-1102 Full text available from: Oxford Journals
Condition d'Acclimatement d'Echinochoa pyramidalis (Lam.) Hitchc. & Chase et de Cyperus papyrus L. pour le Traitement de Bous de Vidange
Tsama Njitat, Valérie
Master's Thesis, Université de Yaoundé, Cameroun The main macrophytes that are used in constructed wetlands for treating faecal sludge or waste water in Europe and Asia are Typha spp. and Phragmites spp. Asia. These plants are absent in Cameroon. This study was designed to study the conditions of acclimatization of two indigenous species in Cameroon (Cyperus papyrus L. and Echinochoa pyramidalis (Lam.) Hitchc. & Chase cultivated in vertical flow constructed wetlands system fed with rough faecal sludge. Download
Implantation et dimensionnement d’une station de traitement des boues de vidange dans la commune de Ouahigouya (Burkina Faso)
Diagne, Etienne
Mater's Thesis, Ecole Inter-Etats d’Ingénieurs de l’Equipement Rural de Ouagadougou, Burkina Faso Download
Optimizing Montana’s model to permit urban drainage in humid tropical environment: the case of Abidjan (Côte d’Ivoire)
Dongo, Kouassi
In sub-Saharan Africa, the "hygienic" model used in urban drainage is faced with constraints in humid tropical environment, subjected to a high level of climatic variability. In Côte d’Ivoire adapting Montana's rain model is not satisfactory for certain time slots whereas this model includes the Caquot's rate-of-flow model used in urban drainage. This work aims at optimizing and designing models which best simulate tropical downpours and help in calculations relating to urban drainage in Abidjan and elsewhere. In: 10th International Conference on Urban Drainage, Copenhagen/Denmark, 21-26 August 2005. Download
Analyse de la situation de l’environnement sanitaire des quartiers défavorisés dans le tissu urbain de Yopougon a Abidjan, Cote d’Ivoire
Dongo, Kouassi
The integration into a Geographical information system (GIS) of multi-source data from QUICKBIRD imagery, ancilliary data and the results from socio-environmental investigations alowed to analyse the sanitary environment of 6 precarious settlements located along an open and exposed drainage channel, in Yopougon (Abidjan, Côte d’Ivoire). The observatory of the sanitary environment of these deprivileged areas were conducted through analysis and mapping of main factors influencing the life quality of the populations. The spatial sharpness of QUICKBIRD imagery contributed to update the land use/land cover map. Analysis of various factors witch characterise the sanitary environment reveals many insufficiences as regards the management of the sanitation system of the settlements, thus exposing the populations to illness related to sanitation like malaria and diarrhoea. The findings will permit planing appropriate measurements to overcome sanitation problems in these précarious areas. In: VertigO – La revue en sciences de l'environnement 8(3). Download
Morbidity and nutrition patterns of three nomadic pastoralist communities of Chad
Schelling, Esther
"As a part of an interdisciplinary research and action programme, morbidity and nutritional patterns were assessed in three nomadic communities: Fulani and Arab cattle breeders and Arab camel breeders, of two prefectures in Chad. The predominant morbidity pattern of Chadian nomadic pastoralists (representing approximately 10% of the total population of the country) had not been documented so far. A total of 1092 women, men and children was examined by a physician and interviewed during two surveys in the dry season and one in the wet season (1999–2000). Participants with no complaint were rare. Pulmonary disorders (e.g. bronchitis) were most often diagnosed for children under 5 years of age. Of the adult participants, 4.6% were suspected of tuberculosis. Febrile diarrhoea occurred more often during the wet season when access to clean drinking water was precarious. Malaria was only rarely clinically diagnosed among Arabs during the dry season, whereas Fulani, who stayed in the vicinity of Lake Chad, were also affected during this period. A 24-h dietary recall showed that less Arab women than men consumed milk during the dry season (66% versus 92%). [...]" Acta Tropica 2005, Volume 95, Issue 1, pp. 16-25 Available from: ScienceDirect
Cost-description of a pilot parenteral vaccination campaign against rabies in dogs in N'Djaména, Chad
Kayali, U.
"In the discussion about policies and strategies for rabies prevention in developing countries, intervention costs arise as a major issue. In a pilot mass vaccination campaign against rabies in N'Djaména, Chad, 3000 dogs were vaccinated. We assessed vaccination coverage and cost, showing the cost per dog vaccinated for the public sector and for society. An extrapolation to city level calculated the approximate cost of vaccinating all 23 600 dogs in N'Djaména. In the pilot mass campaign with 3000 dogs the average cost per dog was 1.69 €. to the public and the full societal cost was 2.45 €. If all 23 600 dogs in N'Djaména were vaccinated, the average cost would fall to 1.16 € to the public and 1.93 € to society. Private sector costs account for 31% of the cost to vaccinate 3000 dogs, and 40% of the cost to vaccinate 23 600 dogs. Mass dog vaccination could be a comparatively cheap and ethical way to both control the disease in animals and prevent human cases and exposure, especially in developing countries. The cost-effectiveness of dog vaccination compared with treating victims of dog bites for prevention of human rabies should be further assessed and documented." Tropical Medicine & International Health 2006, Vol. 11, Issue 7, pp. 1058 Available for purchase from: Blackwell Synergy
Quels types de services de santé pour les populations nomades?
Wyss, Kaspar
"To overcome barriers of access to health care of nomadic people and to alleviate inequities in health, a transdisciplinary team has initiated research and intervention activities among three nomadic groups of Chad: Foulbé, Arabes and Gouranes. A regular and consistent communication among all actors involved (nomadic groups, researchers, planners and administrators of health and veterinary services, etc.) through repetitive meetings and workshops showed to be a crucial element for success. Differences between ethnic nomadic groups made it necessary to develop specific communication strategies adapted to each group. As to interventions to improve the vaccination coverage, mixed teams combining health and veterinary specialists were able to vaccinate an important number of children and women and showed to have a high potential in terms of organisational and logistic feasibility, acceptability as well as good cost-effectiveness. With regard to improving access to health care, Information – Education and Communication approaches adapted to the intervention context and linked to the provision of essential services and generic drugs showed to be crucial." Médecine Tropicale 2004, Vol. 64, No. 5, pp. 493-496 Download
Constraints to scaling-up health related interventions
Wyss, Kaspar
"This analysis of constraints to scaling-up health-related interventions in Chad shows that emphasis has to be put on systemic approaches which address absorptive capacity, on removal of structural constraints, and on efficient and equitable production of health services. In the production of services the development of infrastructure must not exceed the development of human resources. If the millennium development goals are to be achieved, major investments in basic and in-service training and in management skills are crucially needed. In addition, the study shows the importance of promoting health services which actively seek to fulfil community demands and those of disadvantaged groups." Journal of International Development 2003, Vol. 15, No. 1, pp. 87-100 Available from: Wiley InterScience
Seroprevalence of Q-fever in febrile individuals in Mali
Steinmann, P.
Tropical Medecine and International Health 10(6):612-617. In: Tropical Medicine & International Health
Interconnected Slums: Water, Sanitation and Health in Abidjan, Côte d'Ivoire
Obrist, Brigit
Current debates about slums centre on the growing inequality brought about by economic globalisation. Within this context, slums are typically viewed as bounded units within the city emphasising differentiation with other neighbourhoods. This paper questions whether a focus exclusively on slums is useful for the examination of the provision of water, sanitation and health in African cities and suggests a complementary perspective emphasising urban interconnectedness. Using a comparative case study approach, it examines responses to environmental conditions in urban as well as rural contexts along drainage channels in Abidjan, West Africa. The paper traces linkages on various and partly interrelated analytical levels: spatial, material, social, political, local, national and international. Such an analysis of multi-level dynamics between stakeholders contributes to a better understanding of slums as a phenomenon of urbanisation. The European Journal of Development Research 2006, Vol. 18, Issue 2, pp 319-336 Download
Operational plan for small scale milk producers in peri-urban of Bamako (Mali)
Bonfoh, Bassirou
Journal of Sahelian Studies and Research (12): 7-25.
Sex and the City. Erzählungen alter Männer und Frauen über jugendliche Sexualität und AIDS in Ouagadougou (Burkina Faso)
Schwärzler, Patricia
In: Dilger H, Hadolt B, editors. Medizin im Kontext: Krankheit und Gesundheit in einer vernetzten Welt. Frankfurt a. M.: Peter Lang Verlag, pp 389-409. Download
Le réseau social des maraîchers à Abidjan agit sur la perception des préoccupations et des risques sanitaires liés à l’eau
Matthys, Barbara
"L'objectif de la présente étude conduite dans des zones de production maraîchère d'Abidjan, Côte d'Ivoire, était d'analyser les problèmes principaux des cultivateurs; leur perceptions des maladies et des risques sanitaires et la corrélation entre les risques sanitaires et le statut socio-économique des ménages ainsi que la cohésion sociale dans les communautés maraîchères. Les problèmes principaux sont l'insécurité foncière et de difficultés de commercialisation. Les préoccupations sanitaires sont la fatigue et l'insalubrité. En l'absence d'une éducation sanitaire fondée et des interventions localement adaptées, les cultivateurs n'accordent pas une attention particulière à la prévention des risques sanitaires. Le support technique, en concordance avec l'éducation et la communication de la prévention des risques sanitaires, promettent une augmentation de la productivité et une amélioration des moyens de subsistance des ménages cultivateurs à Abidjan." VertigO - la revue électronique en sciences de l'environnement 2006, hors série 3, Article 8 Download PDF from: VertigO
Urban farming and malaria risk factors in a medium-sized town of Côte d’Ivoire
Matthys, Barbara
"Urbanization occurs at a rapid pace across Africa and Asia and affects people’s health and well-being. A typical feature in urban settings of Africa is the maintenance of traditional livelihoods, including agriculture. The purpose of this study was to investigate malaria risk factors in urban farming communities in a medium-sized town in Côte d’Ivoire. Two cross-sectional surveys were carried out among 112 households from six agricultural zones. [...] Our findings indicate that specific crop systems and specific agricultural practices may increase the risk of malaria in urban settings of tropical Africa." American Journal of Tropical Medicine and Hygiene 2006, 75(6), pp. 1223-1231 Available for purchase from: American Journal of Tropical Medicine and Hygiene
Vers un Assainissement Urbain Durable en Afrique Subsaharienne
Koanda, Halidou
PhD Thesis, Swiss Federal Institute of Technology Lausanne, Switzerland The thesis developed tools for sustainable faecal sludge management: stakeholder analysis combined with stakeholder involvement as a planning model, sociopsychological model for understanding the population willingnesss to improve faecal sludge management, sustainable money fluxes based on sanitations taxes and emptying fees. Download
Système d’Information Géographique et Planification stratégique des déchets solides de la ville de Ouahigouya (Burkina Faso)
Kenmoé, Joe Frazié
Master's Thesis, Ecole Inter-Etats d’Ingénieurs de l’Equipement Rural de Ouagadougou, Burkina Faso Download
Coverage of pilot parenteral vaccination campaign against canine rabies in N’Djaména, Chad
Kayali, U.
"Canine rabies, and thus human exposure to rabies, can be controlled through mass vaccination of the animal reservoir if dog owners are willing to cooperate. Inaccessible, ownerless dogs, however, reduce the vaccination coverage achieved in parenteral campaigns. This study aimed to estimate the vaccination coverage in dogs in three study zones of N’Djaména, Chad, after a pilot free parenteral mass vaccination campaign against rabies. We used a capture–mark–recapture approach for population estimates, with a Bayesian, Markov chain, Monte Carlo method to estimate the total number of owned dogs, and the ratio of ownerless to owned dogs to calculate vaccination coverage. When we took into account ownerless dogs, the vaccination coverage in the dog populations was 87% (95% confidence interval (CI), 84–89%) in study zone I, 71% (95% CI, 64–76%) in zone II, and 64% (95% CI, 58–71%) in zone III. The proportions of ownerless dogs to owned dogs were 1.1% (95% CI, 0–3.1%), 7.6% (95% CI, 0.7–16.5%), and 10.6% (95% CI, 1.6–19.1%) in the three study zones, respectively. Vaccination coverage in the three populations of owned dogs was 88% (95% CI, 84–92%) in zone I, 76% (95% CI, 71–81%) in zone II, and 70% (95% CI, 66–76%) in zone III. Participation of dog owners in the free campaign was high, and the number of inaccessible ownerless dogs was low. High levels of vaccination coverage could be achieved with parenteral mass vaccination. Regular parenteral vaccination campaigns to cover all of N’Djaména should be considered as an ethical way of preventing human rabies when post-exposure treatment is of limited availability and high in cost." Bulletin of the World Health Organization 2003, Vol. 81, No. 10, pp. 739-744 Download PDF from: World Health Organization
Social dynamics and fertility management in deprived urban areas [in French]
Doumbia, Mohamed
PhD Thesis, Université de Cocody, Côte d'Ivoire For further information please contact the author
Calf mortality and parasitism in periurban livestock production in Mali
Wymann, Monica
PhD Thesis, University of Basel, Switzerland For further information please contact the author
International Conference on Research for Development (ICRD 2008)
NCCR North-South,
NCCR North-South Dialogue, No. 21
Autochthony, natural resource management and conflicting rights in West Africa.
Fokou, Gilbert
Focusing on pastoralism and access to land, this article aims to demonstrate that management institutions are eroded in a context of resource scarcity, and that certain groups build discourse and strategies on fuzzy notions of nationhood or identity in order to exclude other users. In this process, the notion of autochthony appears to be an ideological tool in the hands of native people to express their social malaise and difficulties in sustaining their livelihoods in a context of global development. The article concludes that in a context of ‘presence-absence’ of the state, negotiations between various stakeholders at different levels could foster sustainable development. In: Hurni H, Wiesmann U, editors; with an international group of co-editors. Global Change and Sustainable Development: A Synthesis of Regional Experiences from Research Partnerships. Perspectives of the Swiss National Centre of Competence in Research (NCCR) North-South, University of Bern, Vol. 5. Bern, Switzerland: Geographica Bernensia, pp 61-76. Download
The moment of sale: treating malaria in Abidjan, Côte d'Ivoire
Granado, Stefanie
Anthropology & Medicine 16(3):319-331. Download
Disparities in parasitic infections, perceived ill health and access to health care among poorer and less poor schoolchildren of rural Côte d'Ivoire
Raso, Giovanna
"Differences in the state of health between rural and urban populations living in Africa have been described, yet only few studies analysed inequities within poor rural communities. We investigated disparities in parasitic infections, perceived ill health and access to formal health services among more than 4000 schoolchildren from 57 primary schools in a rural area of western Côte d'Ivoire, as measured by their socioeconomic status. [...] Our study provides evidence for inequities among schoolchildren's parasitic infection status, perceived ill health and access to health care in a large rural part of Côte d'Ivoire. These findings call for more equity-balanced parasitic disease control interventions, which in turn might be an important strategy for poverty alleviation." Tropical Medicine & International Health 2005, Vol. 10, Issue 1, pp. 42–57 Available from: Blackwell Synergy
Elaboration d’un schéma directeur d’alimentation en eau potable de la commune de Dourtenga (Burkina Faso)
Diouf, Modou
Master's Thesis, Ecole Inter-Etats d’Ingénieurs de l’Equipement Rural de Ouagadougou, Burkina Faso Download
Le désert existe aussi dans la ville
Ould Taleb, Moustapha
"Ce travail porte sur la perception des déterminants de la vulnérabilité à la maladie et la gestion des problèmes de santé qui surviennent dans les ménages au niveau des populations d'origine nomade en milieu urbain défavorisé à Nouakchott. La méthodologie utilisée est qualitative basée sur des entretiens approfondis et l'observation participante. La perception de la santé est largement rapportée à la mauvaise qualité de l'habitat et au manque de moyens financiers pour l'accès aux services de santé. Les maladies les plus citées sont le paludisme, les problèmes gastriques et les maladies pédiatriques. Les épisodes de maladie sont gérés grâce à l'appui du réseau familial ou tribal qui se manifeste à travers la ''loha'', la solidarité du groupe de parenté. Il y a un besoin de stratégies de développement adaptées pour assurer l'intégration de ces populations spécifiques dans le tissu urbain à travers (1) l'implantation de services sociaux d'éducation et de santé, (2) le financement de microprojets pour combattre le chômage et (3) l'appui en formation pour les coopératives." VertigO - la revue électronique en sciences de l'environnement 2006, hors série 3, Article 4 Download PDF from: VertigO
A collaborative monitoring concept for developing cities
Repetti, Alexandre
PhD Thesis, epfl, Switzerland For further information please contact the author
Land Transformation and Social Change in the Delta of the Senegal River
Keita, Moussa
PhD Thesis, University of Saint Louis, Senegal For further information please contact the author
Improving urban drainage in Abidjan Côte d’Ivoire
Dongo, Kouassi
Tropical humid climates of sub-Saharan Africa with a high level of variability build a challenge for hygienic models used in urban drainage. Based on a probabilistic and stochastic approach,this work optimised and designed models which best simulate tropical downpours and improved calculations related to urban drainage in Abidjan and in other urban settings with similar climatic conditions. In: African Journal of Science and Technology. Science and Engineering Series Vol. 8, No. 1, pp. 8 - 16. Download
Sexual and Reproductive Resilience of Adolescents in Ghana and Tanzania
Pfeiffer, Constanze
Flyer of research project on "Sexual and reproductive resilience". Download
Global Change and Sustainable Development: A Synthesis of Regional Experiences from Research Partnerships
Hurni, Hans
Humankind today is challenged by numerous threats brought about by the speed and scope of global change dynamics. A concerted and informed approach to solutions is needed to face the severity and magnitude of current development problems. Generating shared knowledge is a key to addressing global challenges. This requires developing the ability to cross multiple borders wherever radically different understandings of issues such as health and environmental sanitation, governance and conflict, livelihood options and globalisation, and natural resources and development exist. Global Change and Sustainable Development presents 36 peer-reviewed articles written by interdisciplinary teams of authors who reflected on results of development-oriented research conducted from 2001 to 2008. Scientific activities were – and continue to be – carried out in partnerships involving people and institutions in the global North, South and East, guided by principles of sustainability. The articles seek to inform solutions for mitigating, or adapting to, the negative impacts of global dynamics in the social, political, ecological, institutional and economic spheres. For the print version, please send your order to: nccr-north-south@cde.unibe.ch (price: CHF 45.00 / EUR 30.00, excluding postage) Download Book (30 MB) Download Flyer (94 KB)