I shall not, I presume, be thought presumptuous in declaring, that the Cow Pox is the most efficacious, and the most safe, of all the methods that have been yet discovered, for eradicating the Small Pox.
Smallpox vaccine
An Inquiry into the Causes and Effects of the Variolae Vaccinae...
1798
Found in 1 providers: grok
Cross Reference
1 source
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