The discovery of vaccination is one of the most important that has ever been made.
Smallpox vaccine
Found in 1 providers: grok
Cross Reference
1 source
"The most important lesson that I have learned in life is, that we should always endeavour to do our duty."
Strange & Unusual"The cow-pox is a mild disease, and never fatal; the small-pox is a formidable one, and often fatal. The cow-pox is not infectious; the small-pox is highly so."
Strange & Unusual"My greatest ambition has always been to be useful to mankind."
Strange & Unusual"I have often wished that I had more time to devote to my favourite studies."
Strange & Unusual"I have been so much engaged in making experiments, that I have had no time to write letters."
Strange & UnusualPremium quality, printed on demand. Ships worldwide.
Don't see what you're looking for? Email us for custom products
