Sensitivity of rapid antigen tests for COVID-19 during the Omicron variant outbreak among players and staff members of the Japan Professional Football League and clubs: a retrospective observational study.
Michio MurakamiHitoshi SatoTomoko IrieMasashi KamoWataru NaitoTetsuo YasutakaSeiya ImotoPublished in: BMJ open (2023)
Even during the Omicron outbreak, the sensitivity of the rapid antigen tests did not depend on the duration from the onset of symptoms to testing.