I had a severe case of covid one year ago. I had positive antibodies from it. I have gotten them checked every couple of months. I’m getting them done again on Tuesday. I have not gotten vaccinated because of neuropathy issues and religious reasons. My hematologist told me in sept that anything over 80 is considered positive. Their office, which is the largest in my area does not require people to be vaccinated to work there but they must prove every month they are positive for antibodies. So I feel very comfortable with my situation. I know natural immunity isn’t supposed to guard against different strains but I go on with my life and am doing well. I do not put myself in foolish situations though. I had a kidney transplant 7 yrs ago.