The NFL cites outside influences for the most recent set of positive coronavirus tests, including exposures during the holiday season. There were 21 new confirmed positive tests among players and 37 among other personnel in the league’s latest round of testing for COVID-19. Dr. Allen Sills, the league's chief medical officer, referred to three sources of exposure: household, outside medical providers, and community/social settings. "They apply for seven days following (a team's) elimination, and include daily testing and other protocols that will remain in place. Following those seven days, the testing would be handed over to the club for how they would like to conduct that."

Source: Fox News December 30, 2020 18:33 UTC