A new study finds that 528 National Football League (NFL) and National Collegiate Athletic Association (NCAA) football games with limited in-person attendance during the 2020-21 season weren't linked to increased community COVID-19 cases, and another shows that 74% of NCAA men's basketball spectators correctly wore face coverings.Role of public health measures, outdoor settingsIn the first study, published today in JAMA Network Open, a team led by Massachusetts General Hospital researchers compared county-level COVID-19 spread after fan-attended NFL and NCAA games with COVID-19 transmission in counties that didn't host a game the same day but had hosted the same number of games—without any fans—in the 14 days leading up to it.Across 101 NFL