Prevalence of intestinal parasitic infections among inhabitants of Tan-nan village, Nantou County, Taiwan.

The pork infected with cysticerci was sent to our laboratory in June 1971. Microscopic examination revealed the infection of Cysticercus cellulosae. Subsequently, the source of the pork was traced, and the survey of intestinal parasitism was carried out among inhabitants at Tan-nan village, Hsin-I District, Nantou County, Taiwan, in August 1973. Results obtained only indicated the presence rather than endemic of taeniasis solium in this village. The parasites and infection rates found in the present study from 417 individuals by means of direct smear and formalin-ether sedimentation technic of stool specimens are as follows: Ascaris lumbricoides (81.3%), hookworm (30.9%), Trichuris trichiura (73.6%), Strongyloides stercoralis (0.5%), Clonorchis sinensis (2.9%), Hymenolepis diminuta (0.7%), Taenia solium (0.2%), Taenia saginata (0.2%), Entamoeba histolytica (3.1%), Entamoeba coli (8.4%), Endolimax nana (2.6%), and Giardia lamblia (4.3%).