济南市一起新型冠状病毒肺炎聚集性疫情调查

doi:10.6040/j.issn.1671-7554.0.2020.328

摘要/Abstract

摘要： 目的调查一起新型冠状病毒肺炎聚集性疫情的流行病学特征、感染来源和传播途径,为制定防控策略提供依据。方法对4例病例(A~D)开展现场流行病学调查,内容包括基本信息、发病诊疗经过、暴露史和密切接触者排查。结果病例A、B、C均有发热、乏力、肌肉酸痛等症状,病例D为隐性感染者,4例病例CT均显示有肺炎病变。4例病例发病到就诊时间间隔为0~3 d,发病到住院时间间隔为1~7 d。病例B 和病例D 分别为病例A 和病例C的密切接触者。病例A、C、D为同事关系,发病前均前往北京、泰安等地参加公司聚会。病例A和B为父女关系。结论本起疫情为外地聚会导致的感染,并引起家庭内传播。病例A 、C 和D可能是在北京开会期间感染,病例B是密切接触病例A导致的感染。应加强密切接触者排查、隔离和检测,减少人员聚集,密切关注隐性感染者。

关键词: 新型冠状病毒肺炎, 流行病, 现场调查

Abstract: Objective To investigate the epidemiological characteristics, source of infection, and transmission route of a cluster associated with the corona virus disease 2019(COVID-19), and to provide evidence for prevention and control strategies. Methods Field epidemiological investigation and analysis were performed on 4 cases(A-D). The survey contents included basic information, onset of cases, diagnosis and treatment, exposure history and close contacts. Results Cases A, B, and C all had symptoms such as fever, fatigue, and muscle soreness. Case D was an asymptomatic case. Computed tomography showed interstitial hyperplasia with infection in all of the patients lungs. The interval from onset to treatment was 0-3 days, and the interval from onset to hospitalization was 1-7 days. Case B was the close contact of case A, and case D was the close contact of case C, respectively. Cases A, C, and D were colleagues, and they all went to Beijing, Taian and other places to participate in the companys party activities before the onset. Cases A and B were father-daughter relationship. Conclusion The outbreak was an infection caused by company gatherings and families infection. Cases A, C, and D may have been infected during a meeting in Beijing, and case B was an infection caused by exposure to case A. Investigation, isolation and testing of close contacts should be strengthened to reduce the concentration of personnel and close attention should be paid to asymptomatic cases.

Key words: Corona virus disease 2019, Epidemiology, Field investigation

中图分类号:

R511.7

赵梦娇,刘仲,李战,常彩云,赵小冬,耿兴义. 济南市一起新型冠状病毒肺炎聚集性疫情调查[J]. 山东大学学报 (医学版), 2020, 58(4): 44-48.

ZHAO Mengjiao, LIU Zhong, LI Zhan, CHANG Caiyun, ZHAO Xiaodong, Geng Xingyi. Epidemiological investigation of a cluster associated with corona virus disease 2019 in Jinan City, China[J]. Journal of Shandong University (Health Sciences), 2020, 58(4): 44-48.

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