publication . Article . 2021

Presymptomatic transmission of SARS-CoV-2 infection: a secondary analysis using published data

Casey-Bryars, Miriam; Griffin, John; McAloon, Conor; Byrne, Andrew; Madden, Jamie; Mc Evoy, David; Collins, Áine; Hunt, Kevin; Barber, Ann; Butler, Francis; ...
Open Access English
  • Published: 01 Jun 2021 Journal: BMJ Open, volume 11, issue 6 (eissn: 2044-6055, Copyright policy)
  • Publisher: BMJ Publishing Group
  • Country: Ireland
Abstract
Objective To estimate the proportion of presymptomatic transmission of SARS-CoV-2 infection that can occur, and the timing of transmission relative to symptom onset. Setting/design Secondary analysis of international published data. Data sources Meta-analysis of COVID-19 incubation period and a rapid review of serial interval and generation time, which are published separately. Participants Data from China, the Islamic Republic of Iran, Italy, Republic of Korea, Singapore and Vietnam from December 2019 to May 2020. Methods Simulations were generated of incubation period and of serial interval or generation time. From these, transmission times relative to symptom...
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free text keywords: Epidemiology, 1506, 2474, 1692, infection control, infectious diseases, virology, public health, Epidemiology, Infection control, Infectious diseases, Public health, Virology, COVID-19, Coronavirus
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