宮城県一農村における鈎虫の疫学的調査とその考察

抄録

In a village of Miyagi Prefecture, epidemiological studies on the hookworm were carried out from 1954 to 1955. The incidence of human infection was found to be relatively higher in percentage on residents working in fields under cultivation and lower in those who had no or seldom chance of working in fields. Among the latter were included babies, children, nurses, care-takers and students. The infection of hookworm is thought to be remarkably effected by the mode of life, the relation of the mode of life to the contaminated area is of great importance to the infection. By the treatment with tetrachiorethylene 216 cases were found to discharg hookworms. Twentythree or 12.2 per cent of them were infected with Ancylostoma duodenale DUBINI, whereas 80 or 42.6 per cent with Necator americanus STILES and 85 or 45.2 per cent with both species. Of the total of 5279 specimenus of hookworm 4481 proved to be A. duodenale and 798 N. americanus.