oa Central African Journal of Medicine - Spatial heterogeneity in patterns of human schistosomiasis infection in the Zimbabwean highveld

Volume 34, Issue 9
  • ISSN : 0008-9176



A study of spatial heterogeneity in patterns of Schistosoma haematobium and S. mansoni infections in 10 small villages on the Zimbabwean highveld was carried out during 1982-1984. Water use patterns were highly focal and for one reason or another people preferred certain sites over others. There were striking differences in prevalence and intensity of infection of schistosomiasis among various groups of villagers and school children examined and in Bulinus globosus and Biomphalaria pfeifferi infection rates and cercarial densities in six water contact sites surveyed. Although no clear cut patterns were evident, the data suggested that schistosomiasis infection in the human population was related to water use patterns and the infectivity of the different water bodies used. The findings are discussed in relation to the control of morbidity and transmission of schistosomiasis at the community level.

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