沈丘、潢川、午阳三县先后于1972年、1973年和1975年开展丝防工作。在各级党委的领导下,采取领导、专业队与群众运动相结合的方法普查普治丝虫病。经过二至四年的反复斗争,使丝虫感染率大幅度下降,达到了中央基本消灭丝虫病的要求。为了进一步验证丝防效果,总结丝防经验,我们遵照省卫局予革卫防字[77]第6号、12号指示 Shenqiu, Huangchuan, Wuyang three counties in 1972, 1973 and 1975 to carry out silk work. Under the leadership of the party committees at all levels, we should take a combination of leadership, professional teams and mass movements in the screening of common filariasis. After two to four years of repeated struggles, the rate of filarial infection dropped drastically, meeting the requirement of the central government to basically eliminate filariasis. In order to further verify the effectiveness of Silk Screening and to sum up Silk Screening experience, we follow the instructions from Provincial Bureau of Health Protection to Ge Wei Fang Zi [77] No. 6 and No. 12