I couldn’t get Covid doing blow off a dead hookers arse; licking doors handles and elevator buttons all In the same day. There is absolutely immunity out there. I haven’t had a sick day form work in six years or a sniffle for that matter in three. I take Lots of supplements that block infection as well. Green tea every morning with my vitamins . 1000 mg of turmeric and elderberry zinc are the big ones. This has gone beyond retarded!