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.
Smallpox vaccine
An Inquiry into the Causes and Effects of the Variolae Vaccinae...
1798
Found in 1 providers: grok
Cross Reference
1 source
"The most pleasing part of my life has been spent in the pursuit of knowledge."
Strange & Unusual"I have often been struck with the wonderful harmony that prevails throughout the works of nature."
Strange & Unusual"It is a fact well known to many, that persons who have had the Cow Pox, are for ever after secure from the infection of the Small Pox."
Strange & Unusual"Don't think; try."
Humorous"The disease has hitherto been confined to particular districts; and it has been observed, that where the Cow Pox has prevailed, the Small Pox has been much less frequent, and much less fatal."
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