Personally, if you had an mRNA shot, I would gamble getting a different brand for the 3rd dose.
If you got your first shots at say Walgreens, would CVS or Walmart really have an easy way of knowing when you went in for your “vaccine” (in quotes because it would be a third dose and you’d be pretending to get a first dose). I doubt the system is organized enough to track it
žēl ka cilvēkiem lai tiktu pie veselīgas mantas ir jākrāpjas, bet cigaretes var nopirkt jebkurš deviņgadnieks