Abstract
An intensive field survey of intestinal parasitic infections was conducted at three community villages on Amami Oshima island, southern Japan (N. 28°, E. 129°). After five repeated collections, 96% of the population (510) submitted materials for examination. Only 54% of the residents responded to the first call but the age distribution of the responded was statistically deviated as compared with that of the expected. However, the prevalence data of hookworm and Trichuris infections were not statistically different from that of the resultant total collections. In this size of sampling, the difference of collection methods may not influence the results. The resultant prevalence data were 13% for hookworm, 25% for Trichuris and Enterobius, 3% for Strongyloides, 2.5% for Ascaris and 3% for amebic infections. Among the non-responses, the refusal was 15 percent.
