Food-trade-associated COVID-19 outbreak from a contaminated wholesale food supermarket in Beijing  

作　　者：Shan Lu Weijia Wang Yanpeng Cheng Caixin Yang Yifan Jiao Mingchao Xu Yibo Bai Jing Yang Hongbin Song Ligui Wang Jiaojiao Wang Bing Rong Jianguo Xu 

机构地区：[1]State Key Laboratory of Infectious Disease Prevention and Control,Chinese Center for Disease Control and Prevention,National Institute for Communicable Disease Control and Prevention,Beijing,PR China [2]Shanghai Public Health Clinical Center,Shanghai Institute for Emerging and Re-emerging Infectious Diseases,Shanghai,PR China [3]Research Units of Discovery of Unknown Bacteria and Function,Chinese Academy of Medical Sciences,Beijing,PR China [4]University of Connecticut,Storrs,CT,USA [5]Scholl of Public Health,Shanxi Medical University,Taiyuan,Shanxi Province,PR China [6]Center for Disease Control and Prevention of Chinese People’s Liberation Army,Fengtai District,Beijing,PR China [7]The State Key Laboratory of Management and Control for Complex Systems,Institute of Automation,Chinese Academy of Sciences,Beijing,PR China [8]Department of Epidemiology,Center for Global Health,School of Public Health,Nanjing Medical University,Nanjing,PR China [9]Institute of Public Health,Nankai University,Tianjing,PR China [10]Department of Epidemiology and Biostatistics,School of Public Health,Nanjing Medical University,Nanjing,PR China

出　　处：《Journal of Biosafety and Biosecurity》2021年第1期58-65,共8页生物安全和生物安保杂志（英文）

摘　　要：The re-emerging outbreak of COVID-19 in Beijing,China,in the summer of 2020 originated from a SARSCoV-2-infested wholesale food supermarket.We postulated that the Xinfadi market outbreak has links with food-trade activities.Our Susceptible to the disease,Infectious,and Recovered coupled Agent Based Modelling(SIR-ABM)analysis for studying the diffusion of SARS-CoV-2 particles suggested that the trade-distancing strategy effectively reduces the reproduction number(R0).The retail shop closure strategy reduced the number of visitors to the market by nearly half.In addition,the buy-local policy option reduced the infection by more than 70%in total.Therefore,retail closures and buy-local policies could serve as significantly effective strategies that have the potential to reduce the size of the outbreak and prevent probable outbreaks in the future.

关 键 词：COVID-19 outbreak Transmission mechanism Food distribution network Control measures Agent Based Modelling 

分 类 号：R51[医药卫生—内科学]