Effectiveness of Interventions to Control Transmission of Reemergent Cases of COVID-19 — Jilin Province, China, 2020
Qinglong Zhao, Meng Yang, Yao Wang, Laishun Yao, Jianguo Qiao, Zhiyong Cheng, Hanyin Liu, Xingchun Liu, Yuanzhao Zhu, Zeyu Zhao, Jia Rui, Tianmu Chen
Abstract
<sec> <b> <b>What is already known about this topic?</b> </b> COVID-19 has a high transmissibility calculated by mathematical model. The dynamics of the disease and the effectiveness of intervention to control the transmission remain unclear in Jilin Province, China. </sec><sec> <b> <b>What is added by this report?</b> </b> This is the first study to report the dynamic characteristics and to quantify the effectiveness of interventions implemented in the second outbreak of COVID-19 in Jilin Province, China. The effective reproduction number of the disease before and after May 10 was 4.00 and <i>p</i><0.01, respectively. The combined interventions reduced the transmissibility of COVID-19 by 99% and the number of cases by 98.36%. </sec><sec> <b> <b>What are the implications for public health practice?</b> </b> The findings of this study would add data on the transmission of COVID-19 and provide evidence to prepare the second outbreak transmission of the disease in other areas of China even in many other countries. </sec>