It the Yankees factor. 9 of the vaccinated staff have tested positive since Mon
of last week ( this includes 1 player who already had COVID and the vaccine). I think the CDC is trying to be overly cautious about the potential spread to others including by those who are already vaccinated. Many of the Yankees org had no symptoms and it’s unclear if any caught COVID before they were vaccinated. FWIW they all got the J&J shot.