[An epidemiological study of intestinal bilharziasis and roundworm infections in Bafia (Cameroon)].

The prevalence of intestinal helminthiasis is measured by means of stool examinations. In Bafia eggs are passed in the feces of 69.1% of the inhabitants for Ascaris lumbricoides, 70.1 % for Trichuris trichiura, 59.6 % for Necator americanus and 14.8% for Enterobius vermicularis. A small focus of intestinal bilharziasis exists in Bafia and eggs of Schistosoma mansoni are found in the feces of 18.6% of the persons studied. Biomphalaria pfeifferi is the intermediate host of the parasite and transmission occurs in the town itself, in the fish-culture pool and in the rivers Guen and Rutop.