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The prevalence of asymptomatic and symptomatic COVID19 disease in a cohort of quarantined subjects by Al-Qahtani, Manaf; AlAli, Salman; Abdul Rahman, Abdul Karim; Salman Alsayyad, Adel; Otoom, Sameer; Atkin, Stephen L. is a scholarly article available to read on EtoBox.

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## Background: The frequency of asymptomatic sars-cov-2 infection with viral spread is unclear. asymptomatic sars-cov-2 infection development and progression was investigated in subjects undergoing mandatory quarantine on airport arrival. ## Methods: 2714 subjects were tested for sars-cov-2 and all were quarantined for 2 weeks. viral retesting was undertaken on symptom development and routinely at 14 days if asymptomatic. asymptomatic, positive patients underwent viral testing every 2 days to determine viral clearance. ## Results: 188/2714 (6.9%) patients became sars-cov-2 positive. on arrival, 136/188 tested positive, with 44/188 (23.4%) symptomatic and 92/188 (48.9%) asymptomatic. all 92 patients remained asymptomatic and were retested every 2 days until viral clearance. 2526 quarantined subjects remained virus free at 14 days. viral clearance did not differ between symptomatic and asymptomatic patients (12.6 ± 1.0 days and 12.1 ± 0.4 days, respectively). of the 52/188 (27.7%) testing negative on arrival, 27/52 subsequently became positive and developed symptoms 2-13 days after arrival. 25/188 (13.3%) remained asymptomatic and tested positive at day 14, with viral testing underta

Author

Al-Qahtani, Manaf; AlAli, Salman; Abdul Rahman, Abdul Karim; Salman Alsayyad, Adel; Otoom, Sameer; Atkin, Stephen L.

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1201-9712)

Published

2020

Language

EN