> The moral hazard of legitimizing natural immunity is very real. It hasn’t for other vaccines/diseases. For example when I went back to grad school and didn’t

> The moral hazard of legitimizing natural immunity is very real. It hasn’t for other vaccines/diseases. For example when I went back to grad school and didn’t have a shot record they they tested me for anitibodies instead of using more vaccines. I was low on MMR so got a booster but didn’t need varicella and various others. No big deal.