| 陈飒,张义,李超,宁少奇,李欣欣,朱妮,年云鹏,曹磊,杨国婧,王维华,刘叶舟,王良,雷方良,刘峰,沈明望.陕西省2020年新型冠状病毒肺炎聚集性疫情典型案例分析[J].Chinese journal of Epidemiology,2020,41(8):1204-1209 |
| 陕西省2020年新型冠状病毒肺炎聚集性疫情典型案例分析 |
| Typical case analysis of COVID-19 cluster epidemic in Shaanxi，2020 |
| Received:February 25, 2020 |
| DOI：10.3760/cma.j.cn112338-20200225-00170 |
| KeyWord: 新型冠状病毒肺炎 聚集性疫情 |
| English Key Word: COVID-19 Aggregated epidemic |
| FundProject: |
| Author Name | Affiliation | E-mail | | Chen Sa | Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China | | | Zhang Yi | Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China | | | Li Chao | School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China | | | Ning Shaoqi | Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China | | | Li Xinxin | Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China | | | Zhu Ni | Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China | | | Nian Yunpeng | Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China | | | Cao Lei | Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China | | | Yang Guojing | Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China | | | Wang Weihua | Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China | | | Liu Yezhou | School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China | | | Wang Liang | School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China | | | Lei Fangliang | School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China | | | Liu Feng | Shaanxi Provincial Center for Disease Control and Prevention, Xi'an 710054, China | myishy@163.com | | Shen Mingwang | School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China | mingwangshen521@xjtu.edu.cn |
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| Abstract: |
| 目的 本研究通过分析陕西省新型冠状病毒肺炎聚集性疫情中的4起典型案例的传播模式，为聚集性疫情防控提供参考。方法 收集整理新型冠状病毒核酸检测阳性病例的相关流行病学调查资料，绘制传播链，分析传播过程。结果 案例一包含13名病例，因病例1一家五口去武汉市自驾游返回后多次与朋友聚会聚餐引起。案例二包含6名病例，病例1从武汉市返回后，在潜伏期参加亲属祝寿引起的聚集性疫情。案例三包含10名病例，以院内传播为主的聚集性疫情。案例四包含4名病例，为工作场所内传播引起的聚集性疫情。结论 接触频率越高、空间越密闭，发生小范围暴发的可能性越高，且存在较长时间潜伏期传播的可能。在当前阶段，新型冠状病毒肺炎防控应重点关注于人群密集的场所、企业复工管理和医院内的感染防控。 |
| English Abstract: |
| Objective By analyzed the transmission patterns of 4 out of the 51 COVID-19 cluster cases in Shaanxi province to provide evidences for the COVID-19 control and prevention. Methods The epidemiological data of RT-PCR test-confirmed COVID-19 cases were collected. Transmission chain was drawn and the transmission process was analyzed. Results Cluster case 1 contained 13 cases and was caused by a family of 5 who traveled by car to Wuhan and returned to Shaanxi. Cluster case 2 had 5cases and caused by initial patient who participated family get-together right after back from Wuhan while under incubation period. Cluster case 3 contained 10 cases and could be defined as nosocomial infection. Cluster case 4 contained 4 cases and occurred in work place. Conclusion Higher contact frequency and smaller places were more likely to cause a small-scale COVID-19 cluster outbreak, with potential longer incubation period. COVID-19 control strategies should turn the attention to infection prevention and control in crowded places, management of enterprise resumption and prevention of nosocomial infection. |
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