No, and I got COVID multiple times via family, including losing small for a time. I suspect the lack of vaccine side effects was itself a clue that it didn't activate anything in my particular immune system. I was doing everything I was supposed to do. Vaccine, boosters, N95 masks, social distancing, not eating out, no haircuts, only really shopping at the grocery store, etc. All that obviously worked for others, and I'm glad, but didn't work for me.