平凯珂, 雷明玉, 勾云, 陶忠发, 刘昭兵, 姚光海, 胡灿, 邹志霆, 王定明, 李世军, 黄艳. 2020年贵州省新型冠状病毒肺炎疫情特征分析[J]. 疾病监测, 2021, 36(6): 581-586. DOI: 10.3784/jbjc.202103100109
引用本文: 平凯珂, 雷明玉, 勾云, 陶忠发, 刘昭兵, 姚光海, 胡灿, 邹志霆, 王定明, 李世军, 黄艳. 2020年贵州省新型冠状病毒肺炎疫情特征分析[J]. 疾病监测, 2021, 36(6): 581-586. DOI: 10.3784/jbjc.202103100109
Ping Kaike, Lei Mingyu, Gou Yun, Tao Zhongfa, Liu Zhaobing, Yao Guanghai, Hu Can, Zou Zhiting, Wang Dingming, Li Shijun, Huang Yan. Epidemiological characteristics of coronavirus disease 2019 in Guizhou, 2020[J]. Disease Surveillance, 2021, 36(6): 581-586. DOI: 10.3784/jbjc.202103100109
Citation: Ping Kaike, Lei Mingyu, Gou Yun, Tao Zhongfa, Liu Zhaobing, Yao Guanghai, Hu Can, Zou Zhiting, Wang Dingming, Li Shijun, Huang Yan. Epidemiological characteristics of coronavirus disease 2019 in Guizhou, 2020[J]. Disease Surveillance, 2021, 36(6): 581-586. DOI: 10.3784/jbjc.202103100109

2020年贵州省新型冠状病毒肺炎疫情特征分析

Epidemiological characteristics of coronavirus disease 2019 in Guizhou, 2020

  • 摘要:
      目的  分析2020年贵州省新型冠状病毒肺炎(COVID-19)病例流行病学特征,为制定防控措施和策略提供依据。
      方法  收集2020年贵州省报告的COVID-19病例信息,采用描述性流行病学方法,对病例的三间分布、感染来源及疫情特征等进行分析。
      结果  2020年1月22日至12月31日,全省累计报告COVID-19病例173例,死亡2例,病死率为1.16%。 其中确诊病例147例(84.97%),无症状感染者26例(15.03%);重症病例31例(21.09%);本地病例84例(48.55%)、境内输入病例87例(50.29%)、境外输入病例2例(1.16%)。 疫情曲线呈双峰型,两个高峰间隔7 d,第1个发病高峰以境内输入病例为主,第2个发病高峰以本地病例为主。 全省9个(100%)市/州44个(50%)县(区)均有病例报告,主要分布在贵阳市、毕节市及遵义市(占全省总病例的70.70%)。 男、女性别比为1.06∶1;各年龄组均有病例报告,年龄中位数为37岁。 82例(47.40%)病例是通过密切接触者主动筛查发现,55例(31.79%)是通过主动就诊发现,36例(20.81%)是通过对湖北省武汉市来黔等重点人员主动筛查发现。 暴露因素以密切接触者(42.77%)和武汉市旅居史人员(38.73%)为主。 29起聚集性疫情均为家庭聚集病例。
      结论  贵州省COVID-19病例以境内输入及密切接触感染为主。 对疫情重点地区人员及密切接触者等重点人员的早期排查、集中隔离管理及对发热病例的监测是早发现和防止疫情传播的关键。

     

    Abstract:
      Objective  To analyze the epidemiological characteristics of coronavirus disease 2019 (COVID-19) cases in Guizhou, and provide evidence for the prevention and control of COVID-19.
      Methods  The data of COVID-19 cases reported in Guizhou in 2020 were collected for a descriptive epidemiological analysis.
      Results  From January 22 to December 31, 2020, a total of 173 COVID-19 cases were reported, including 2 deaths (fatality rate: 1.16%), in Guizhou. Among these cases, 147 were confirmed cases (84.97%) and 26 were asymptomatic infection cases (15.03%), 31 were severe cases (21.09%), 84 were local cases (48.55%), 87 were domestic imported cases (50.29%) and 2 were overseas imported cases (1.16%). The epidemic curve presented two incidence peaks with an interval of 7 days. In the first peak period, domestic imported cases were mainly reported, and in the second peak period, local cases were mainly reported. The cases were reported in 44 (50%) districts in 9 (100%) cities, mainly in Guiyang, Bijie and Zunyi, accounting for 70.70% of the total. The men to women ratio of the cases was 1.06∶1. The cases were reported in all age groups, the median of the age of cases was 37 years. There were 82 cases (47.40%) detecting through screening of close contacts, 55 cases (31.79%) through medical visits, and 36 cases (20.81%) through screening of key personnel, such as those traveling from Wuhan. The main exposure factor included close contact (42.77%) and living in Wuhan (38.73%). There were 29 family clusters.
      Conclusion  The cases of COVID-19 reported in Guizhou were mainly imported cases and secondary cases in close contacts. Early investigation, centralized isolation, and monitoring of fever cases and close contacts in key areas are essential for the early detection of the cases and the prevention of the spread of COVID-19.

     

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