一起学校甲型H1N1流感聚集性疫情流行病学调查分析

An epidemiological survey and analysis on a mass infection with HINI influenza in a school

目的调查2009年9月东莞市桥头镇某学校发生的一起聚集性发热事件，为学校及时有效采取预防控制措施提供依据。方法对35名有发热（体温≥38％）、咽痛、咳嗽等流感样症状的学生，采用统一方法进行流行病学调查并采集样本进行相关的实验室检测。结果本次调查共发现35例流感样症状患者，其中男25例，女10例；检N3名患者咽拭子样本为甲型H1N1流感核酸检测阳性。结论该疫情为一起甲型H1N1流感病毒引起的聚集性疫情。由于疫点处理及时，未造成疫情的进一步扩散。

Objective To provide evidence for effectively taking measures of prevention and control at schools by investigating a mass fever event happened in a school located at Qiaotou in Dongguan city in Septembe 2009. Methods An epidemiological investigation was conducted on the students who developed influenza-like symptoms including fever （T ≥ 38℃）, sore throat, and cough. Samples were collected for relevant laboratory tests. Results A total of 35 children with influenza-like symptoms were found in this investigation; 25 of whom were male and 10 were female. Throat swab test of nucleic acid for H 1N 1 influenza was positive in 3 children. Conclusions This epidemic situation is a mass fever event caused by H1N1 influenza virus. The epidemic does not spread further because of proper management of the original epidemic spot.