| [human intestinal parasites in subsaharan africa. iii. pemba island (zanzibar-tanzania)]. | the authors carried out a coprological survey in pemba island, analysing, by modified ritchie technique, 413 stools samples. the specimens were collected among the population from apparently healthy subjects chosen at random in a number equal to 2% of the whole population. the examined subjects were divided in 3 age groups, 211 were males, 202 females. the following results were obtained (in order of prevalence): a) protozoa: entamoeba coli 35.6%, giardia intestinalis 5.6%, endolimax nana 4.3%, ... | 1987 | 3508507 |