Tovani-Palone, M.R. and Siddiqui, M.F. 2021. COVID-19 Surveillance of Healthcare Workers during the SARS-CoV-2 Vaccination Period: An Updated Protocol Suggestion. Clinics. 76, (Jun. 2021), e3096. DOI:https://doi.org/10.6061/clinics/2021/e3096.