Methods Subjects were collected from community population by stratified multi-stage cluster sampling method. The data gathered from case investigation and serological detection.
方法对社区人群采用多阶段分层整群随机抽样方法抽取研究对象,进行个案调查和血清学检测。
Method Mutual complementary detection was used in serological study with ELISA and IHA.
方法:用ELISA和IHA两种血清学检测方法进行互补检测。
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