Transmission Dynamics and Epidemiological Characteristics of the SARS-CoV-2 Delta Variant ― Hunan Province, China, 2021
作者机构：Hunan Provincial Center for Disease Control and PreventionWorkstation for Emerging Infectious Disease Control and PreventionChinese Academy of Medical SciencesChangsha CityHunan ProvinceChina Shanghai Institute of Infectious Disease and BiosecurityFudan UniversityShanghai MunicipalityChina School of Public HealthFudan UniversityKey Laboratory of Public Health SafetyMinistry of EducationShanghai MunicipalityChina Division of International Epidemiology and Population StudiesFogarty International CenterNational Institutes of HealthBethesdaMDUSA Laboratory of Computational Epidemiology and Public HealthDepartment of Epidemiology and BiostatisticsIndiana University School of Public HealthBloomingtonINUSA
出 版 物：《China CDC weekly》 (中国疾病预防控制中心周报（英文）)
年 卷 期：2023年第5卷第3期
页 面：56-62,I0006-I0009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)] 1002[医学-临床医学] 100401[医学-流行病与卫生统计学] 10[医学]
基 金：Supported by grants from the Key Program of the National Natural Science Foundation of China(82130093) Shanghai Municipal Science and Technology Major Project(ZD2021CY001) Hunan Provincial Innovative Construction Special Fund:Emergency response to COVID-19 outbreak(No.2020SK3012) Chinese Academy of Medical Sciences Coronavirus Disease 2019 Science and Technology Research Project in 2020(No.2020HY320003)。
主 题：Hunan population Province
摘 要：Monitoring changes in the epidemiologic features between different severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)variants is key to understanding the evolution of viral fitness in the host population.Here,we analyzed a successfully contained local outbreak of the Delta variant that took place in Hunan,China,in July–August,2021.Detailed data on SARS-CoV-2 infections and their contacts were collected during the outbreak.By leveraging these data,we estimated key epidemiological parameters,including the incubation period,serial interval,and generation time.We constructed a generalized linear mixed-effects model(GLMM)to quantify risk factors for Delta infection and transmission.Between July 28 and August 15,2021,a total of 129 infections and their 2,118 close contacts were identified during the outbreak in Hunan Province.
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