凤台县2005～2007年钩端螺旋体病监测报告

Analysis of Leptospirosis Surveillance in Fengtai County from 2005 to 2007

目的了解凤台县自然人群及宿主动物钩体病感染情况，为预防控制钩体病提供依据。方法采用显微凝集实验检测人血清，滴度至1：100（＋＋）为隐性感染；采用柯索夫培养基，孵育分离宿主动物肾脏钩体并分型。结果2005～2007年共检测人血清383份，其中阳性14人，隐性感染率为3．66％。捕获宿主动物401只（主要是鼠类），带菌40只，带菌率为9．98％，均为黄疸出血型。结论凤台县有钩体病潜在流行的可能，必须做好防治工作。

Objective To understand infection status of leptospirosis among natural population and the host animals in Fengtai county and to provide a scientific basis for leptospirosis control and prevention. Methods The serum antibody was detected by Microscopic agglutination test. Titer ≥ 1：100（ ＋ ＋ ） was judged as inapparent infection. Leptospire was incubated and separated from host animals＇ kidney and identified by Korth of medium. Results During the period from 2005 to 2007, 383 sera were detected. Of them, 14 were positive. The rate of inapparent infection was 3.77%. 401 host animals （ mainly rodents ） were captured, 40 carried leptospire. They were all hemorrhagic jaundice. Carried rate of leptospire was 9.98%. Conclusion Fengtai county had potential risk of leptospirosis prevalence. Thus leptospirosis control and preven- tion should be still strengthened.