Health care workers (HCWs) face disproportionate risk of exposure and becoming ill in any infectious disease outbreak. SARS-CoV-2 has proven to be no exception: From Wuhan to Manaus, London to Tehran, and Delhi to Johannesburg, HCWs working in clinics and hospitals have been at heightened risk of developing COVID-19 disease,1-5 especially at the beginning of the pandemic when little was known about the then-novel pathogen.6,7 The estimated incidence of SARS-CoV-2 infection amongst HCWs in the first year of the pandemic varied widely across settings, from less than 1% to nearly 50% positivity on PCR testing,8,9 with more recent evidence suggesting an average incidence of 12.5% amongst HCWs in China, the US and Europe.10-12