Man has come up with some pretty damn good supplements
In full disclosure I am vaccinated as I travel a lot and don't like the hassle of dealing with any non-vaccinated crap. My parents also took me to the Middle East and Africa as a kid and I was shot up with God knows what in the early 70's and survived so not worried about a Covid Vaccine. I talked to a couple good friends who work at National Institute of Health and my Step Dad is probably one of the best infectious diseases experts in the world for animals. Everyone I talked to who is way way smarter than me gave me the same advice, so I feel comfortable with my decision, but everyone is free to make their own.