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Epidemiological survey of intestinal schistosomiasis in djohong adamawa cameroon 1. parasitological results

, : Epidemiological survey of intestinal schistosomiasis in djohong adamawa cameroon 1. parasitological results. Cahiers OO.M.-(Office-de-la-Recherche-Scientifique-et-Technique-Outre-Mer)-Serie-Entomologie-Medicale-et-Parasitologie. 1987; 25(2): 83-90

A parasitological survey has been performed on a sample of the inhabitants of Djohong (Adamawa, Cameroon). The formalin-ether technique was most sensible for detection of Schistosoma mansoni eggs. The prevalence of intestinal schistosomiasis is 26,9% by stool examination. Its value is increasing with age similarity in both sexes in children, but shows in adults a discrepancy: in males, the prevalence curve rises a pick in teen-agers and young men, and is decreasing in the oldest subjects: in females, it remains level. The intensity of the infestation is low in this community. This epidemiological feature is characteristic for the North Cameroon tribal areas, in contrast with what is observed in the rain forest in the South. Differences in prevalence of schistosomiasis are obvious in the different ethnical groups: farmers and hunters (Gbaya, Mbum, Laka, Duru) are significantly more infected than the merchants living the town (Fulbe) or the nomadic shepherds (Mbororo). None fresh water snails have been found in the vicinity of the town. The water bodies where transmission occurs are probably located in the Mbere valley devoted to agricultural and hunting activities. The few Schistosoma haematobium cases noted in the survey were imported. Urinary schistosomiasis is not endemic in the eastern part of the Adamawas. Schistosoma bovis eggs in human feaces were shown for the first time in the Cameroon.

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