Epidemiology and control of schistosomiasis mansoni in communities living on the Cuando River floodplain of East Caprivi, Namibia
| Autor: | A. C. Evans, M. D. Pammenter, S. J. Pretorius, P. H. Joubert, R. M. Cooppan, P. L. Jooste, E. Gouws, C. J. Badenhorst, C. H. J. Schutte, Johan J. Joubert |
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| Rok vydání: | 1995 |
| Předmět: |
Adult
Male Floodplain Adolescent 030231 tropical medicine Schistosomiasis Snail Praziquantel Cohort Studies 03 medical and health sciences Antiplatyhelmintic Agents 0302 clinical medicine Age Distribution 030225 pediatrics biology.animal medicine Prevalence Animals Humans Bulinus Child Schistosoma haematobium geography geography.geographical_feature_category biology Ecology Intermediate host Infant Newborn Infant Middle Aged biology.organism_classification medicine.disease Namibia Infectious Diseases Mollusca Case-Control Studies Child Preschool Niclosamide Parasitology Cattle Female Schistosoma mansoni Trematoda |
| Zdroj: | Annals of tropical medicine and parasitology. 89(6) |
| ISSN: | 0003-4983 |
| Popis: | The Cuando River area of eastern Caprivi, Namibia, is highly endemic for Schistosoma mansoni whereas S. haematobium transmission, due to the scarcity of its intermediate host snail, Bulinus africanus, does not occur. Chemotherapy (6-monthly blanket treatments with praziquantel) combined with focal mollusciciding (monthly application of niclosamide) was used in a project in the area to control the disease. Although as many adults and pre-school children as possible were tested and treated, the project concentrated largely on school-age children. It took 3 years for prevalence to decline from80% to 20% because of a lack of proper sanitary facilities and piped water supplies and high rates of absenteeism and re-infection. However, intensity of infection decreased more rapidly, from an arithmetic mean of200 to5 eggs/g faeces. Hepatomegaly was common among school children when the project started but could be seen in only a small percentage of them after 3 years of control. Neither the bovine schistosome, S. mattheei, nor the lechwe schistosomes, S. margrebowiei and S. leiperi, were observed in the excreta of humans living in the area. |
| Databáze: | OpenAIRE |
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