蒲圻市急性血吸虫病感染的调查

A SURVEY OF ACUTE SCHISTOSOMIASIS IN PUQI CITY

1986年蒲圻市发生154例急性血吸虫病感染,急感发病率为12.38％(154/1,244).其中初次接触疫水者,发病率为6.17％;接触2～3次者为10.10％;经常接触者(4次及以上)为13.06％。时间以8月份发病人数最高,占61.69％(95/154);方式以游泳嬉水者最多,占89.61％(138/154);部位以全身接触疫水者最多,占87.01％(134/154);年龄以4至25岁的青少年最多,占92.21％(142/154);职业以学生的发病人数最高,占70.13％(108/154),垸外感染发病149例,占96.75％,垸内感染5例,占3.25％。本文对发生原因和防治对策作了探讨。

This paper presents a survey of a wide-spread acute infection of schistosomi-asis in Puqi, Hubei Province, in the summer of 1986. Of the 1244 persons exami-ned, 154 were acute schistosomiasis, accounted for 12.38%. As for the percentage of acute cases in relation to the frequency of exposures to contaminated water, 6.17% had acute manifestations among those exposed for the first time, 10.10% from people exposed for 2~3 times and 13.09% among those exposed repeatedly. The peak incedence, 61.69%, took plase in August. Most of the patients were infected through swimming (89.61%) or exposure of the whole body to contaminated water (87.01%). 92.21% of the cases were children and young adults, aged 4~25, of whom, 70.13% were students. 149 cases were infected out side the embankment (96.75%), and 5 inside the embankment (3.25%). It is suggested that after the elimination of snails inside the embankment of epidemic areas near rivers, lakes or marshes, a long period of investigation and sweeping of infected snails is still necessary.