biostudies-literatureUnknown56(3)Schreiber SDeutscher Fußball-Bund<h4>Objective</h4>To investigate the risk of transmission among potentially infectious SARS-CoV-2-positive football players while participating in training or matches at amateur, youth and professional levels.<h4>Methods</h4>Between August 2020 and March 2021, football players who tested positive for SARS-CoV-2 and participated in matches or training during the period of potential contagiousness were identified through media search (professional level) and a nationwide registry in Germany (amateur and youth level) to determine symptoms, source of infection and hygiene measures adopted. The definition of potentially infectious players was based on the time of a positive PCR testing and symptom onset. Transmission-relevant contacts on the pitch were evaluated through doubly reviewed video anBritish journal of sports medicine158-164https://www.ebi.ac.uk/biostudies/studies/S-EPMC8526192biostudies-literatureRisk of SARS-CoV-2 transmission from on-field player contacts in amateur, youth and professional football (soccer).PMC8526192Schreiber SGartner BFaude OMeyer TEgger FfalseRisk of SARS-CoV-2 transmission from on-field player contacts in amateur, youth and professional football (soccer).<h4>Objective</h4>To investigate the risk of transmission among potentially infectious SARS-CoV-2-positive football players while participating in training or matches at amateur, youth and professional levels.<h4>Methods</h4>Between August 2020 and March 2021, football players who tested positive for SARS-CoV-2 and participated in matches or training during the period of potential contagiousness were identified through media search (professional level) and a nationwide registry in Germany (amateur and youth level) to determine symptoms, source of infection and hygiene measures adopted. The definition of potentially infectious players was based on the time of a positive PCR testing and symptom onset. Transmission-relevant contacts on the pitch were evaluated through doubly reviewed video an2022-01-01T00:00:00Z2022 Feb2026-07-16T14:50:22.76Z2026-07-09T11:02:18.508ZS-EPMC85261923466357010.1136/bjsports-2021-104441