Results from a Test-to-Release from Isolation Strategy Among Fully Vaccinated National Football League Players and Staff Members with COVID-19 - United States, December 14-19, 2021. - Mack, Christina D.; Wasserman, Erin B.; Killerby, Marie E.; Soelaeman, Rieza H.; Hall, Aron J.; MacNeil, Adam; Anderson, Deverick J.; Walton, Patti; Pasha, Saamir; Myers, Emily; O'Neal, Catherine S.; Hostler, Christopher J.; et al. (MMWR: Morbidity & Mortality Weekly Report, 2022)