I got the flu vaccine about 20 minutes ago. There were several people waiting for boosters. All Pfizer, it seemed. There's reason to believe that last winter's social distancing, banning of activities, and masking nearly eliminated flu. This winter there may be less immunity among the general public and the vaccine may be less good than usual--people who determine which strains will be covered had thin information to rely on. Flu was searched for, as usual, but not much was found.