[Epidemiological characteristics of local outbreak of COVID-19 caused by SARS-CoV-2 Delta variant in Liwan district, Guangzhou].
[Epidemiological characteristics of local outbreak of COVID-19 caused by SARS-CoV-2 Delta variant in Liwan district, Guangzhou].
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DOI：
10.3760/cma.j.cn112338-20210613-00472
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发表时间：
2021-10-10
影响因子：
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通讯作者：
Hao, Y T
中科院分区：
文献类型：
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作者：
Li, W Y;Du, Z C;Hao, Y T
目的：分析广州市荔湾区一起由sars - cov - 2b .1.617.2（Delta）变异引起的2019冠状病毒病（COVID-19）局部暴发的流行病学特征，为进一步防控Delta变异提供依据。方法：从中国疾病预防控制信息系统国家法定传染病报告系统和广州市荔湾区疾病预防控制中心获取2021年5月21日至6月18日由Delta变异引起的COVID-19发病数据。使用频率分析（比例）、直方图和百分比堆叠面积图来描述暴发的流行病学特征。利用孵育期和时变繁殖数（Rt）估计进行进一步分析。结果：截至2021年6月18日，荔湾区共报告德尔塔型新冠肺炎病例127例。最小的2岁，最大的85岁。年龄占18.9% （24/127）
Objective: To analyze the epidemiological characteristics of a local outbreak of COVID-19 caused by SARS-CoV-2 B.1.617.2(Delta) variant in Liwan district, Guangzhou, and provide evidence for the further prevention and control of the Delta variant of COVID-19. Methods: From May 21 to June 18, 2021, the incidence data of COVID-19 caused by Delta variant were obtained from National Notifiable Disease Report System of Chinese Disease Prevention and Control Information System and Liwan District Center for Disease Control and Prevention of Guangzhou.Frequency analysis (proportions), histograms, and percentage stacked area plots were used to describe the epidemiological characteristics of the outbreaks. The incubation period and time-varying reproduction numbers (Rt) estimations were used for the further analysis. Results: By June 18, 2021, a total of 127 COVID-19 cases caused by Delta variant was reported in Liwan district. The youngest case was aged 2 years and the oldest was aged 85 years. There were 18.9% (24/127) aged