Feasibility of Booster Vaccination in High-Risk Populations for Controlling Coronavirus Variants—China,2021
作者机构:State Key Laboratory of Molecular Vaccinology and Molecular DiagnosticsSchool of Public HealthXiamen UniversityXiamenFujianChina Universitéde MontpellierMontpellierFranceCIRADIntertrypMontpellierFranceIESUniversitéde Montpellier-CNRSMontpellierFrance Chinese Center for Disease Control and PreventionBeijingChina.
出 版 物:《China CDC weekly》 (中国疾病预防控制中心周报(英文))
年 卷 期:2021年第3卷第50期
页 面:1071-1074,I0001-I0004页
核心收录:
学科分类:1004[医学-公共卫生与预防医学(可授医学、理学学位)] 100401[医学-流行病与卫生统计学] 10[医学]
基 金:Bill&Melinda Gates Foundation(INV-005834)
主 题:vaccine acute respiratory
摘 要:Introduction:Vaccination booster shots are completely necessary for controlling breakthrough infections of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)in *** study aims to estimate effectiveness of booster vaccines for high-risk populations(HRPs).Methods:A vaccinated Susceptible-Exposed-Symptomatic-Asymptomatic-Recovered/Removed(SEIAR)model was developed to simulate scenarios of effective reproduction number(Reff)from 4 to *** number of infectious and asymptomatic cases were used to evaluated vaccination ***:Our model showed that we could not prevent outbreaks when covering 80%of HRPs with booster unless Reff=4.0 or the booster vaccine had efficacy against infectivity and susceptibility of more than 90%.The results were consistent when the outcome index was confirmed cases or asymptomatic ***:An ideal coronavirus disease 2019(COVID-19)booster vaccination strategy for HRPs would be expected to reach the initial goal to control the transmission of the Delta variant in ***,the recommendation for the COVID-19 booster vaccine should be implemented in HRPs who are already vaccinated and could prevent transmission to other groups.