Contact patterns between index patients and their close contacts and assessing risk for COVID-19 transmission during different exposure time windows: a large retrospective observational study of 450 770 close contacts in Shanghai

Contact patterns between index patients and their close contacts and assessing risk for COVID-19 transmission during different exposure time windows: a large retrospective observational study of 450 770 close contacts in Shanghai

Introduction To characterise age-mixing patterns among index cases and contacts of COVID-19, and explore when patients are most infectious during the disease process.Methods This study examined all initial 90 885 confirmed index cases in Shanghai and their 450 770 close contacts. A generalised addit...

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Main Authors: Weibing Wang, Genming Zhao, Hao Pan, Bo Zheng, Chenyan Jiang, Yaxu Zheng, Huanyu Wu, Shenghua Mao, Ye Yao, Xiaohuan Gong, Sheng Lin, Bihong Jin, Dechuan Kong
Format: Article
Language:English
Published: BMJ Publishing Group 2024-07-01
Series:BMJ Public Health
Online Access:https://bmjpublichealth.bmj.com/content/2/1/e000154.full
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