安徽省首起猴痘聚集性疫情流行病学调查

Epidemiological investigation on the first monkeypox clustered epidemic in Anhui Province

目的 了解安徽省首起猴痘聚集性疫情发生原因,分析其传播链,为方便处置此类事件提供参考。方法 对安徽省立医院感染病院报告的3例猴痘确诊病例开展流行病学调查,绘制疫情传播时间图,采用实时荧光定量PCR方法检测猴痘病毒核酸。结果 这起疫情涉及3例病例均为MSM人群,均有HIV感染史;感染来源可能为省外病例余某某,通过男男同性性行为传播;其中2例病例通过主动就诊方式发现。结论 猴痘以男男同性性行为传播为主,需要对MSM人群进行干预以降低感染风险,同时提升医疗机构猴痘的发现及诊断能力。

Objective To investigate the cause of the first monkeypox clustered epidemic in Anhui Province,analyze its transmission chain,and provide reference for the disposal of such incidents.Methods An epidemiological investigation was conducted on 3 confirmed cases of monkeypox by Anhui Province Hospital Infection District,and a time map of epidemic transmission was drawn.Real time fluorescence quantitative PCR was used to detect the nucleic acid of monkeypox virus.Results The three cases involved in this epidemic were men who had sex with men( MSM) and had a history of HIV infection.The source of infection might be a case from outside the province named Yu,which was transmitted through male homosexual behavior.The main method of case detection was active medical consultation,accounting for 2/3.Conclusion Interpersonal transmission of monkeypox is mainly caused by male homosexual behavior,and intervention is needed in MSM populations to reduce the risk of infection,while improving the detection and diagnostic capabilities of medical institutions for monkeypox.