For PPs who've mentioned the need for a 3rd vaccine, this is likely going to happen regardless of travel concerns ie need for a booster. Watch delta moving through Israel now. An early success story with large numbers as fully vaccinated early in the pandemic with pfizer. Now delta moving through fully vaccinated population and suggesting that fully vaccinated protection has a limited shelf life esp for those with underlying health issues and seniors.
But I completely understand the frustration as I'm first AZ and second Pfizer. I no longer discuss covid with my family md in telehealth conferences as same broken record. I never raise the issue but it is like she is reading from a script repeatedly telling me ie "You didn't make a bad choice with getting AZ and mixing vax". I don't need or wish to hear this. I know I didn't make a 'bad' choice. I made my decisions based on what was available to me at the time and my choice to protect my family and community. I also made my choice without any assistance or participation or input whatsoever from my family md who was completely awol during the pandemic. I'm probably most disappointed with my family md as completely absent from the dialogue and from the pandemic completely. My pharmacist and neighbouring pharmacists who owed me nothing provided more assistance than the medical community. I understand they had chronic care and pre-pandemic patients to triage. But trotting out platitutes now when they offered no advice or assistance just turns me off.
On a more positive note, I agree with PPs that science will bear out and those of us who had to mix vax will eventually be allowed to cruise and travel again. As I have no plans to cruise for over a year or get on an airplane for at least 8-12 months, I can wait. I sympathize and support my fellow DIS'rs who have trips booked and are dealing with this very frustrating issue.