COVID-19 epidemic in Switzerland: on the importance of testing, contact tracing and isolation. Swiss Medical Weekly, [S. l.], v. 150, n. 1112, p. w20225, 2020. DOI: 10.4414/smw.2020.20225. Disponível em: https://smw.ch/index.php/smw/article/view/2742. Acesso em: 19 oct. 2025.