J Infect Dis
February 2024
Background: The BCG (Bacillus Calmette-Guérin) vaccine can induce nonspecific protection against unrelated infections. We aimed to test the effect of BCG on absenteeism and health of Danish health care workers (HCWs) during the coronavirus disease 2019 (COVID-19) pandemic.
Methods: A single-blinded randomized controlled trial included 1221 HCWs from 9 Danish hospitals.