期刊
PUBLIC HEALTH
卷 193, 期 -, 页码 17-22出版社
W B SAUNDERS CO LTD
DOI: 10.1016/j.puhe.2020.12.018
关键词
Coronavirus disease 2019 (COVID-19); Shenzhen; Population mobility; Work resumption; Traffic resumption
资金
- Bill & Melinda Gates Foundation
- National Natural Science Foundation of China [81950410639, 11801435]
- Outstanding Young Scholars Support Program [3111500001]
- Xi'an Jiaotong University Basic Research and Profession Grant [xtr022019003, xzy032020032]
- Epidemiology modeling and risk assessment [20200344]
- Xi'an Jiaotong University Young Scholar Support Grant [YX6J004]
- China Postdoctoral Science Foundation [2018M631134, 2020T130095ZX]
- Fundamental Research Funds for the Central Universities [xjh012019055, xzy032020026]
- Natural Science Basic Research Program of Shaanxi Province [2019JQ-187]
- Xi'an Special Science and Technology Projects on Prevention and Treatment of Novel Coronavirus Penumonia Emergency [20200005YX005]
- Science Foundation for COVID-19 of Xi'an Jiaotong University Health Science Center and Qinnong Bank [2008124]
- Zhejiang University special scientific research fund for COVID-19 prevention and control [2020XGZX056]
The study shows that imported cases account for the majority of early reported cases in Shenzhen, and strict control of imported cases and high level of mask usage can effectively control the transmission of COVID-19. The risk of resurgence of the epidemic decreases with the adoption of different work resumption strategies.
Objectives: As China is facing a potential second wave of the epidemic, we reviewed and evaluated the intervention measures implemented in a major metropolitan city, Shenzhen, during the early phase of Wuhan lockdown. Study design: Based on the classic SEITR model and combined with population mobility, a compartmental model was constructed to simulate the transmission of COVID-19 and disease progression in the Shenzhen population. Methods: Based on published epidemiological data on COVID-19 and population mobility data from Baidu Qianxi, we constructed a compartmental model to evaluate the impact of work and traffic resumption on the epidemic in Shenzhen in various scenarios. Results: Imported cases account for most (58.6%) of the early reported cases in Shenzhen. We demonstrated that with strict inflow population control and a high level of mask usage after work resumption, various resumptions resulted in only an insignificant difference in the number of cumulative infections. Shenzhen may experience this second wave of infections approximately two weeks after the traffic resumption if the incidence risk in Hubei is high at the moment of resumption. Conclusion: Regardless of the work resumption strategy adopted in Shenzhen, the risk of a resurgence of COVID-19 after its reopening was limited. The strict control of imported cases and extensive use of facial masks play a key role in COVID-19 prevention. (C) 2021 The Royal Society for Public Health. Published by Elsevier Ltd. All rights reserved.
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