• Jameela Alajmi, Andrew M Jeremijenko, Joji C Abraham, Moza Alishaq, Elli Gabriel Concepcion, Adeel Ajwad Butt, and Abdul-Badi Abou-Samra.
• Hamad Medical Corporation, Doha, Qatar.
• Int. J. Infect. Dis. 2020 Nov 1; 100: 386-389.

BackgroundOur aim was to determine the prevalence of COVID-19 infection in healthcare workers (HCWs) in a national healthcare system and to understand the risk factors for infection.MethodsThe study was conducted at Hamad Medical Corporation (HMC) in Qatar, a national healthcare system with 14 hospitals and >28,000 employees, between March 10 and June 24, 2020. Data on COVID-19+ HCWs were retrieved from the electronic health records and employment records, followed by an email survey and a focused telephone interview.ResultsAmong 16,912 HCWs tested, 10.6% tested positive. Hospitalization rate was 11.6%, 1.3% required supplemental oxygen, 0.6% needed intensive care unit admission, and 0.3% required mechanical ventilation. There were no deaths. In a follow-up survey of 393 HCWs, 5% reported acquiring infection at a COVID-19-designated facility and 95% at a non-COVID-19 facility having acquired the infection through accidental exposure to a colleague (45%) or a patient (29%). Full personal protective equipment (PPE) adherence was 82% at COVID-19-designated facilities but only 68% at non-COVID-19 facilities.ConclusionsCOVID- 19 infection among HCWs often occurs among those not directly working with COVID-19 patients. PPE use is less stringent in such settings. Risk of exposure and need for strict PPE must be stressed upon all HCWs in all settings.Copyright © 2020 The Author(s). Published by Elsevier Ltd.. All rights reserved.

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