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目的对泰州市靖江某小学校1起急性呼吸道感染爆发疫情进行流行病学调查,以明确诊断,控制疫情。方法通过流行病学调查描述疫情流行特征;采用病例对照研究分析流行因素;采集患者咽拭子进行呼吸道多种病毒的PCR检测。结果疫情报告病例29例,发病高峰呈双峰分布,主要集中该校五(2)班学生(占93.10%),具有班级聚集性。病例对照研究显示每次洗手使用肥皂为保护性因素。3份咽拭子标本检测全部为呼吸道腺病毒阳性,阳性率100%。结论此次急性呼吸道感染爆发疫情由腺病毒引起,传播途径以密切接触为主。
Objective To carry out an epidemiological investigation of an outbreak of acute respiratory infection in a primary school in Jingjiang, Taizhou to make a clear diagnosis and control of the outbreak. Methods Epidemiological characteristics were described by epidemiological investigation. Case-control studies were performed to analyze epidemic factors. Throat swabs were collected for PCR detection of multiple respiratory viruses. Results There were 29 reported cases of epidemic situation. The peak of incidence was bimodal. The students mainly concentrated in five (2) classes (93.10%) of the school, which had class aggregation. Case-control studies have shown that soap is a protective factor each time you wash your hands. 3 throat swab specimens were all positive for respiratory adenovirus, the positive rate of 100%. Conclusion The outbreak of acute respiratory infection was caused by adenovirus. The main route of transmission was close contact.