Canova V, Lederer Schläpfer H, Piso RJ, Droll A, Fenner L, Hoffmann T, Hoffmann M. Transmission risk of SARS-CoV-2 to healthcare workers – observational results of a primary care hospital contact tracing. Swiss Med Wkly [Internet]. 2020 Apr. 25 [cited 2024 Dec. 4];150(1718):w20257. Available from: https://smw.ch/index.php/smw/article/view/2780