一起小学猩红热聚集性疫情的流行病学调查

Epidemiological survey of scarlet fever infection in a primary school

目的通过对某小学一年级某班猩红热聚集性疫情进行调查分析,为有效防控猩红热疫情提供科学依据。方法对北京市西城区某学校猩红热聚集性疫情进行现场调查,并对结果进行描述行流行病学分析。结果该起疫情历时8d,共涉及4例猩红热病例,罹患率为15.38%,对疫情班所有密切接触者进行实验室检测,密切接触者检出阳性率为27.27%。结论加强检出A群β型溶血性链球菌密切接触者的跟踪和管理,同时采取综合防控措施加强小学猩红热疫情的预防与控制。

Objective To investigate and analyze the aggregation of scarlet fever in a primary school for providing scientific basis for formulating prevention and control strategies. Methods Field survey was conducted in scarlet fever infectious focus in a primary school of Xicheng District of Beijing, and the results was analyzed with descriptive epidemiological methods. Results The infection lasted for 8 days,there 4 eases of scarlet fever were reported in the aggregation with an incidence rate of 15.38%,and the incidence rate in close contacts in the aggregation was 27.27%, Conclusion Integrated measures be adopted including strengthening the tracing of close contacts infected with group A 13 Streptococcus hemolytieus to prevent and control of aggregation outbreak of scarlet fever in primary school.