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班氏丝虫病分布于临沂地区的13个县市,淡色库蚊为主要传播媒介,据开始防治前的1957年调查,微阳率15.03％;经60年代部分县的防治,70年代大面积的普查普治和重点病区的全民服药以及食用“海盐”防治,至1983年微阳率已降至0.16％。通过1984～1986三年的横纵向监测,微阳率处较低水平,未见回升趋势,蚊媒自然感染率已接近于0;在抽查10岁以下的15974名儿童中未有新感染,显示我区丝虫病传播已基本阻断。
Bancroftian filariasis is found in 13 counties and cities in Linyi area, and Culex pipiens pallens are the main media. According to the investigation in 1957 before the start of prevention and cure, the micro-yang rate was 15.03%. After the control in some counties in the 1960s, Of the general population and the prevalence of census treatment whales and edible “sea salt” prevention and control, to 1983, the micro-positive rate has dropped to 0.16%. Through horizontal and vertical monitoring from 1984 to 1986 for three years, the micro-yang rate was at a low level and there was no upward trend. The natural infection rate of mosquitoes was close to zero. No new infection was found in the 15,774 children under the age of 10, Transmission of filariasis in our area has been basically blocked.