I didn't have COVID, and I also only had a day or so of fever after my J&J shot in June. My girlfriend had a similarly mild reaction, and we've both been tested regularly for various reasons, we're pretty certain that we haven't been infected.

I just got my recommended booster shot of Moderna yesterday, now I'm waiting to see how hard that will hit me.

There are no certainties, but I know that here you would also been considered immune if you had previously been infected, but not yet vaccinated.

Bad public policy unfortunately exists, same with the thing about not accepting the J&J vaccine as valid. It works about as well as the mRNA vaccines against hospitalizations and death, but with somewhat less efficacy against base infection, and of course a slightly larger risk of complications. That doesn't make it a bad vaccine, so countries not accepting it is completely insane.

Good to know. I was basing my opinion on the fact that the actual infection (confirmed via PCR) had me very fatigued for a week, with a fever for about half of it. And online reports for J&J showed several days of response effects.

I could've opted for Pfizer, but the wait time for it to arrive and to get the full two doses was too long. J&J is one shot, and some say it works better than "older" vaccines.

I did get into the country that didn't have it on their list to be fair. They probably added it later, AZ was on there.