You mean like they were all perhaps written by PR teams, highlighting an issue Democrats have brought to the forefront (covid)? Covid is still circulating. Like people randomly get the flu, people will continue to randomly get covid.

The only coincidence is that Democrats who interact with lots of random people every day, caught a communicable illnesses, and their pr staffers make a canned tweet or other response. They're all the same cuz what else would you say when you are announcing you're sick.? Example:"Btw, I'm sick, but I'm mostly feeling ok, I'm gonna stay away from people for a bit since I may spread the flu. At least it's not worse than it is." That's essentially what those tweets are, and how else would one tell other people they're sick? And again, this is an issue Democrats have brought to the forefront the last couple of years, so makes sense they'd use people catching the illness as a chance for PR.