Transmission risk of SARS-CoV-2 to healthcare workers – observational results of a primary care hospital contact tracing. Swiss Medical Weekly, [S. l.], v. 150, n. 1718, p. w20257, 2020. DOI: 10.4414/smw.2020.20257. Disponível em: https://smw.ch/index.php/smw/article/view/2780. Acesso em: 14 nov. 2025.