4 ms·
With variolation it was not lower dose, but different (mild) strain (cowpox), which offers cross-immunity to smallpox.
by zajio1am 7y ago
With variolation it was not lower dose, but different (mild) strain (cowpox), which offers cross-immunity to smallpox.
- InDemoVeritas 7y agoIt was a controlled infection with Smallpox, by scraping the skin with pus or scab powder from an infected person. Cowpox is what makes the smallpox vaccine.
- zajio1am 7y agoYou are right.
- deleted 7y ago[deleted]