Atin@lemmy.world 2 days ago
Kind of. It’s called inoculation. The best example is if you caught cow pox you became immune, or nearly so at least to small pox which was deadly
Atin@lemmy.world 2 days ago
Kind of. It’s called inoculation. The best example is if you caught cow pox you became immune, or nearly so at least to small pox which was deadly