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山东大学学报 (医学版) ›› 2020, Vol. 58 ›› Issue (4): 49-53.doi: 10.6040/j.issn.1671-7554.0.2020-396

• • 上一篇    

1例不明原因新型冠状病毒肺炎及其密切接触者调查分析

刘仲1,赵梦娇1,杨国樑1,赵怀龙1,王琳琳2,常彩云1,耿兴义1   

  1. 1. 济南市疾病预防控制中心应急处置组, 山东 济南 250021;2. 济南市市中区疾病预防控制中心传染病防治科, 山东 济南 250000
  • 发布日期:2022-09-27
  • 通讯作者: 耿兴义. E-mail:gengxingyi@163.com

Investigation of a COVID-19 case with unknown cause and its close contacts

LIU Zhong1, ZHAO Mengjiao1, YANG Guoliang1, ZHAO Huailong1, WANG Linlin2, CHANG Caiyun1, GENG Xingyi1   

  1. 1. Emergency Response Group, Jinan Municipal Center for Disease Control and Prevention, Jinan 250021, Shandong, China;
    2. Department of Infectious Disease Control, Center for Disease Control and Prevention of Shizhong District, Jinan 250000, Shandong, China
  • Published:2022-09-27

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摘要： 目的 回顾性分析济南市1例感染原因不明的新型冠状病毒肺炎病例引起的家庭聚集性疫情。 方法 应用现场流行病学方法调查1例新型冠状病毒肺炎病例及其2例2代病例,并对29名密切接触者实施医学隔离观察,采用RT-PCR 对采集的相关标本进行新型冠状病毒肺炎病毒核酸检测。 结果 3例新型冠状病毒肺炎确诊病例为家庭聚集性病例。首发病例(病例A)发病前有短期外出史,感染来源不明确。病例B、C因与病例A共同生活被传染。接触时间短、接触频率较低、有一定防护措施的密切接触者经核酸检测、医学观察,均未出现异常。 结论 新型冠状病毒的传播力强,应该把早期发现和早期隔离筛查密切接触者作为防控重点。

关键词: 新型冠状病毒肺炎, 聚集性, 流行病学调查, 密切接触者

Abstract: Objective To retrospectively analyze a family cluster of coronavirus disease 2019(COVID-19)with unknown cause in Jinan City. Methods One case of COVID-19 and two second-generation cases were investigated using field epidemiological methods, and 29 close contacts were quarantined. All cases received nucleic acid test with RT-PCR. Results All three cases were family clusters. The initial case(case A)had a short history of travel before onset, but the source of infection was unclear. Cases B and C lived with case A and were infected. Other close contacts with short contact time, low contact frequency and protective measures showed no abnormalities and were tested negative. Conclusion As 2019-nCoV is highly infectious, early detection and early screening of close contacts should be the focus of prevention and control.

Key words: Coronavirus disease 2019, Cluster, Epidemiological investigation, Close contacts

中图分类号: 

  • R181.3
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