Association of COVID-19 Quarantine Duration and Postquarantine Transmission Risk in 4 University Cohorts.

ABSTRACT:

Importance

Optimal quarantine length for COVID-19 infection is unclear, in part owing to limited empirical data.

Objective

To assess postquarantine transmission risk for various quarantine lengths and potential associations between quarantine strictness and transmission risk.

Design, setting, and participants

Retrospective cohort study in 4 US universities from September 2020 to February 2021, including 3641 university students and staff who were identified as close contacts to individuals who tested positive for SARS-CoV-2 infection. Individuals were tested throughout the 10 to 14-day quarantine, and follow-up testing continued at least weekly throughout the 2020-2021 academic year.

Exposures

Strict quarantine, including designated housing with a private room,

SUBMITTER: Liu AB 

PROVIDER: S-EPMC8881770 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature