Alliance for Pandemic Preparedness

November 9, 2020

The Prevalence of Asymptomatic and Symptomatic COVID19 Disease in a Cohort of Quarantined Subjects

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In a cohort of 2,714 travelers returning to Bahrain by air between February 25th and March 14th, 2020, 136 were SARS-CoV-2 positive on arrival, 68% of whom were asymptomatic. A further 52 became SARS-CoV-2 positive during the mandatory 14-day quarantine following arrival, 46% of whom remained asymptomatic until viral clearance.

Al-Qahtani et al. (Nov 2, 2020). The Prevalence of Asymptomatic and Symptomatic COVID19 Disease in a Cohort of Quarantined Subjects. International Journal of Infectious Diseases. https://doi.org/10.1016/j.ijid.2020.10.091