> 3) Herd immunity. If some kid has leukimia and cannot get vaccinated, he survives thanks to everyone else being vaccinated. Some 30 year old reactionary being an anti-vaxxer and getting covid and surviving it would be ok if he was not a vector of infection to the most vulnerable in society.
You can develop resistance naturally. I was exposed to COVID-19, therefore I have antibodies and I am immune, supposedly for 6 months.
> You can develop resistance naturally. When your body is exposed to a virus or bacteria, it makes antibodies to fight off the infection. When you recover, your body keeps these antibodies. Your body will defend against another infection. This is what stopped the Zika virus outbreak in Brazil. Two years after the outbreak began, 63% of the population had had exposure to the virus. Researchers think the community reached the right level for herd immunity.
100% true, I was not thinking far enough on this.