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目的了解咽结膜热暴发疫情流行特征及病因,为制定有效防控措施、迅速控制疫情提供参考。方法采用统一印制调查表,对杭州市某少年体育学校游泳馆参加游泳培训班的学员及专业运动员病例进行个案调查;对现症病例的咽拭子标本进行RT-PCR法检测,阳性分离株的核酸片段进行扩增测序,确定病毒类型。结果本次疫情累计病例137例,共持续18 d,培训时间为晚上17:30的场次发病人数最多,与其他3个场次罹患率差异有统计学意义(P<0.05)。现症病人咽试了标本检测确定为腺病毒3型。结论应加强暑期培训班的传染病报告管理,严格泳池池水消毒,合理安排培训人次,防止疫情发生。
Objective To understand the epidemic characteristics and etiology of pharyngoconjunctival fever outbreaks and provide reference for effective prevention and control measures and epidemic control. Methods A uniform questionnaire was used to investigate the cases of trainees and professional athletes who participated in the swimming training class in a swimming pool of a juvenile sports school in Hangzhou. The throat swab samples were detected by RT-PCR and the positive isolates The nucleic acid fragments were amplified and sequenced to determine the type of virus. Results A total of 137 cases of this epidemic were observed for 18 days. The training time was the highest at 17:30, and the attack rate was significantly different from that of the other 3 sessions (P <0.05). Disease patients were pharyngeal test specimens identified as adenovirus type 3. Conclusions Management of infectious diseases in summer training courses should be strengthened, disinfection of swimming pool water should be strictly carried out, trainees should be arranged reasonably to prevent outbreaks.