Just seeing this thread now. My father is in a weird situation in that he got Covid a few days after he got shot #1, and then he got monoclonal antibodies. So he hasn't gotten shot #2 yet, as he was told to wait 90 days, though he does plan to get it then.
Follow up on this -
His first dose was actually done out of state. He could go back there for a second dose, and they'll mark it as a second shot on the same vaccine card. Home state said they wouldn't mark it as a second shot on the card since there was a long gap in time between the shots. They said he can take 2 new shots with the proper intervals between them. I was pretty surprised that family doctor told him that he should probably do that.
So, it seems like his options are:
A) He can get the second shot in same location as first and they'll mark it on the same vaccine card - though it could be considered invalidated for some purposes, due to long gap between shots (he can also get the second shot in home state, but would then be in worse shape in terms of the vaccine card, since he wouldn't have any card showing he's fully vaxxed).
B) He could possibly take a J&J one if they start that up again - though that introduces another element of mixing two different types of vaccines (family doctor wasn't in favor of that).
C) He can take 2 new ones in home state - though that seems quite excessive.
What does DDF think?