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目的调查分析铜陵市2011年8月发生的一起因游泳引起学生咽结膜热暴发的病原学病因和流行因素,为今后此类传染病的防控工作提供借鉴。方法制定病例定义进行病例搜索,对所有病例进行流行病学调查,对游泳馆进行现场卫生学调查,描述流行特征,分析流行因素;对患者咽拭子标本进行进行流感病毒核酸检测与呼吸道腺病毒特异性DNA核酸片段检测,以查找病原体。结果共发现咽结膜热病例31例,均为建安小学室内游泳馆暑假短期游泳培训班学员,罹患率为18.56%。发病主要集中8月4～9日,病例均为小学学生。临床特征为发热伴咽痛、结膜炎等。流行病学、现场卫生学调查与分析提示发病危险因素与游泳馆游泳池水污染有关。实验室检测结果为5例患儿中有4例咽拭子呼吸道腺病毒特异性DNA核酸片段检测阳性,证实为腺病毒感染。结论本起咽结膜热暴发疫情的病原体为腺病毒,暴发可能是通过被污染的游泳池水造成传播的。
Objective To investigate and analyze the etiological and epidemic factors of etiology of Tonghua conjunctival fever caused by swimming in Tongling City in August 2011 and provide reference for the prevention and control of such infectious diseases in the future. Methods The case definition was made to search the case, the epidemiological investigation was conducted in all the cases, the on-site hygiene investigation was conducted on the swimming pool, the epidemiological characteristics were described and the epidemic factors were analyzed. The throat swab specimens of patients were tested for influenza virus nucleic acid and respiratory adenovirus Specific DNA fragment detection to find pathogens. Results Thirty-one cases of pharyngeal conjunctival fever were found, all of whom were Jianshui Primary School indoor swimming pool summer short-term swimming training students, with an attack rate of 18.56%. The incidence of the main focus on August 4 to 9, all cases of primary school students. Clinical characteristics of fever with sore throat, conjunctivitis and so on. Epidemiology, on-site hygiene survey and analysis suggest that risk factors associated with swimming pool swimming pool water pollution. The laboratory test results showed that 4 of 5 children had a positive detection of adenovirus specific DNA fragment of throat swab, which was confirmed as adenovirus infection. Conclusion The pathogen of the outbreak of pharyngoconjunctival fever was adenovirus, and the outbreak may have been caused by contaminated swimming pool water.