He G H, Rong Z H, Hu J X, Liu T, Xiao J P, Guo L C, Zeng W L, Zhu Z H, Gong D X, Yin L H, Wan D H, Wu J L, Kang M, Song T, He J F, Ma W J
Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
Zhonghua Liu Xing Bing Xue Za Zhi. 2020 Aug 10;41(8):1214-1219. doi: 10.3760/cma.j.cn112338-20200303-00242.
To compare the epidemiological characteristics of COVID-19 in Guangzhou and Wenzhou, and evaluate the effectiveness of their prevention and control measures. Data of COVID-19 cases reported in Guangzhou and Wenzhou as of February 29, 2020 were collected. The incidence curves of COVID-19 in two cities were constructed. The real time reproduction number () of COVID-19 in two cities was calculated respectively. A total of 346 and 465 confirmed COVID-19 cases were analysed in Guangzhou and Wenzhou, respectively. In two cities, most cases were aged 30-59 years (Guangzhou: 54.9%; Wenzhou: 70.3%). The incidence curve peaked on 27 January, 2020 in Guangzhou and on 26 January, 2020 in Wenzhou, then began to decline in both cities. The peaks of imported COVID-19 cases from Hubei occurred earlier than the peak of COVID-19 incidences in two cities, and the peak of imported cases from Hubei occurred earlier in Wenzhou than in Guangzhou. In early epidemic phase, imported cases were predominant in both cities, then the number of local cases increased and gradually took the dominance in Wenzhou. In Guangzhou, the imported cases was still predominant. Despite the different epidemic pattern, the and the number of COVID-19 cases declined after strict prevention and control measures were taken in Guangzhou and in Wenzhou. The time and scale specific differences of imported COVID-19 resulted in different epidemic patterns in two cities, but the spread of the disease were effectively controlled after taking strict prevention and control measures.
比较广州和温州新冠肺炎的流行病学特征，并评估其防控措施的有效性。收集截至2020年2月29日广州和温州报告的新冠肺炎病例数据。绘制两市新冠肺炎的发病曲线。分别计算两市新冠肺炎的实时传播指数（Rt）。广州和温州分别分析了346例和465例新冠肺炎确诊病例。在两市中，大多数病例年龄在30 - 59岁（广州：54.9%；温州：70.3%）。广州的发病曲线于2020年1月27日达到峰值，温州于2020年1月26日达到峰值，随后两市均开始下降。来自湖北的输入性新冠肺炎病例峰值早于两市新冠肺炎发病峰值，且温州来自湖北的输入病例峰值早于广州。在疫情早期阶段，两市均以输入病例为主，随后温州本地病例数增加并逐渐占据主导地位。在广州，输入病例仍占主导。尽管疫情模式不同，但广州和温州采取严格防控措施后，Rt及新冠肺炎病例数均下降。来自湖北的输入性新冠肺炎在时间和规模上的差异导致两市疫情模式不同，但采取严格防控措施后疾病传播得到有效控制。
