Over 2 1/2 years post transplant and I have had zero shots and never wore a mask and no flu shots for over 20 years my method herd immunity my town I live in is all the same way and zero deaths from Covid my family in a bigger city they had every single one boosters and have had Covid multiple times, I never had it, I take zinc and many vitamins eat very healthy exercise and use the sunshine, I think it really depends on where you live and are in crowded places I am not very rural country living I hope everyone stays safe this winter