4 ms·
Vaccine => Vaca => Cow The OG Vaccine was rubbing pus from cowpox pustules into a scratch on your body. https://en.wikipedia.org/wiki/Smallpox_vaccine#History
by splitrocket 2y ago
Vaccine => Vaca => Cow
The OG Vaccine was rubbing pus from cowpox pustules into a scratch on your body.
https://en.wikipedia.org/wiki/Smallpox_vaccine#History https://en.wikipedia.org/wiki/Smallpox_vaccine#History