山东省丝虫病基本消灭后流行病学动态调查研究

EPIDEMIOLOGICAL SURVEILLANCE OF FILARIASIS IN THE CONTROLLED AREAS OF SHANDONG PROVINCE

山东省在基本消灭丝虫病后,1984～1988年横向监测调查39个县(78个县次)、190乡(镇)、559个自然村,血检420999人,检出微丝蚴血症139人,平均微丝蚴率0.33‰,各年微丝蚴率分别为0.63‰、0.38‰、0.19‰、0.04‰、0.05‰。纵向监测5个县的18个村,经5年血检其中有7个村降至0;有7个村仍各有1例未转阴者;共余4个村一直未发现微丝蚴血症。淡色库蚊自然感染率由1984年的0.13％降至0,血检1～10岁儿童53918人未发现微丝蚴血症。

Filariasis was basically eradicated in Shandong Province in 1983. Since then the epidemiological surveillances have been conducted. During 1984-1988, a total of 420 999 people in 559 villages of 39 counties were examined by blood films and 139(0.033%) mierofilaremia were found. The longitudinal surveillances were carried out in 18 villages of 5 counties with 15 715 people. The microfilaremia rates surveyed in each of the five years were 0.17%, 0.13%, 0.15%, 0.05% and 0.05% and the natural infection rates of C_x. pippiens pallens were 0.13%, 0.05%, 0.01%, 0.007% and 0.85.4% of microfilaremia might become negative during the observation. The results show that the transmission of filariasis in the province have been interrupted.