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作者等于1974～1983年对菲律宾莱特湾岛达加米市的九所小学1,800名学童用粪检和环卵沉淀试验进行了日本血吸虫病年发病率的随访观察。数据用计算机处理。1974年12月～1979年3月采取改造环境措施,1979年2月后对所有虫卵阳性者进行吡喹酮化疗。结果1975～1983年的年发病率依次为22.2％、24.2％、26.9％、9.6％、28.4％、8.4％(1981～1982年未检)和6.8％。结论认为小规模环境改造防制效果很小,群众性化疗效果显著。
The author equaled the follow-up of the annual incidence of schistosomiasis japonica among 1,800 schoolchildren from nine primary schools in Dhaka Bay, Wright Bay, Philippines, from 1974 to 1983 using fecal sequestration and ring-egg deposition tests. Data processing by computer. December 1974 ~ March 1979 to take measures to improve the environment, after February 1979 for all egg-positive praziquantel chemotherapy. Results The annual incidence rates from 1975 to 1983 were 22.2%, 24.2%, 26.9%, 9.6%, 28.4% and 8.4% respectively (1981 ~ 1982 unchecked) and 6.8% respectively. The conclusion is that the effect of prevention and control of small-scale environmental reconstruction is very small and the effect of mass chemotherapy is remarkable.