I think those were the first “vaccines”. Cut open a forearm and put some measle scabs from someone else in there. I could be completely wrong here though.
It was using secretions from cowpox lesions as protection from smallpox. Cowpox is a similar, but much less dangerous pathogen, so it conferred some cross-immunity without risking actual smallpox infection.
I think those were the first “vaccines”. Cut open a forearm and put some measle scabs from someone else in there. I could be completely wrong here though.
It was using secretions from cowpox lesions as protection from smallpox. Cowpox is a similar, but much less dangerous pathogen, so it conferred some cross-immunity without risking actual smallpox infection.
that would variolation, aka smallpox lesions. i think measles dint have a vaccine until decades later. because its mostly respiratory virus.