Strongyloides fülleborni infections in man in Zambia.

Rhabditiform larvae, and in two cases eggs, of Strongyloides spp. identified in the stools of Zambian patients were cultured to the free-living adult stage. Free-living adults of S. fülleborni, a parasite common in primates in Africa and Asia, were present in cultures from 13 (9.9%) of 131 cases of strongyloidiasis. In three of these cases, both S. fülleborni and S. stercoralis free-living adults were found.