南阳市高新区2起聚集性新冠肺炎疫情(关联)调查

Survey on 2 epidemic situation of clustering novel coronavirus, Hi-tech zone, Nanyang city

目的探索聚集性新型冠状病毒肺炎疫情中,通过查找首例患者暴露(感染)史,围绕其密切接触者及关联病例,调查传播途径(传播链)的有效方法,及时有效控制疫情传播。方法根据国家发型行的《新型冠状病毒肺炎防控方案》要求,开展现场流行病学调查,对病例及密切接触者采集鼻咽拭子标本,对采集标本通过实时荧光RT-PCR检测新型冠状病毒核酸,准确了解相关人员行动轨迹,发现接触人员,同时对密切接触者及时进行隔离管控。结果该两起关联聚集性事件中,确诊病例共5人,涉及密切接触者14人(不累计)。其中首例发病患者王某,密切接触者6人;确诊病例周某某(女),密切接触者5人;确诊病例周某某(男),密切接触者4人;确诊病例姬某某,密切接触者7人;确诊病例付某某,密切接触者6人。结论新冠病毒肺炎传染性极高,传播链隐蔽,流行病学调查时要及时告知法律责任,避免因被调查人故意隐瞒暴露史(旅行史)提供虚假信息干扰流行病学调查。

Objective To explore the effective method of finding the transmission route of the first patient and the close contacts in the clustered novel coronavirus epidemic situation, and to control the spread of the epidemic situation in a timely and effective manner. Methods According to the requirements of Novel Coronavirus Prevention and Control Program issued by the state, on-site epidemiological investigation was conducted.Nasopharyngeal swabs were collected from patients and close contacts, and novel coronavirus nucleic acid was detected by real-time fluorescent RT-PCR from the collected samples.The action tracks of relevant personnel were understood accurately, and the contacts were found.Meanwhile, the close contacts were isolated and controlled in time. Results There were 5 confirmed cases and 14 close contacts in the 2 associated cluster events.Among them, Wang, the first patient, had close contact with 6 people;the confirmed case Zhou(female),5 close contacts had close contact with her;the confirmed case Zhou(male),4 people had close contact with him;the confirmed case Ji, and there were 7 close contacts;the confirmed case Fu, and there were 6 close contacts. Conclusion COVID-19 pneumonia is highly contagious, and the transmission chain is concealed.It is necessary to inform the legal responsibility in time for epidemiological investigation, so as to avoid providing false information for the purpose of concealing the history of exposure(travel history),interfering with epidemiological investigation and influencing epidemic prevention and control.