After the Browns QB Mayfield was tested positive for COVID-19 on Wednesday, the NFL and other US leagues reconsidered the vaccination and test rules. The latest updates involve the following:
NFL: a vaccinated player can take part in training sessions only if he has no Covid-19 symptoms and has at least two negative tests made within 24 hours. Unvaccinated players must be out of activities for ten days or more, and if they are asymptomatic, they can proceed with training or participate in games after this period. Later, the NFL will implement new measures related to personal approach to every player aimed at monitoring their vaccination and ensuring all players got their booster shot.
NBA: All unvaccinated players (including those who took only the first vaccine shot) will be daily tested. According to the NBA, more than 60% players does not have a second shot of the vaccine, however, the fully vaccinated players will also be tested if they have symptoms or contacts with positively tested individuals.
NHL: the NHL has the most positive situation compated to the others: most players are fully vaccinated and got tested every three days. A positive test automatically imply a quarantine for at least ten days before the symptoms are gone and the test is negative.