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The smallpox vaccine was the first successful vaccine to be developed.
Edward Jenner observed that milkmaids who caught the cowpox virus did not catch smallpox.
He started testing by infecting people with actual Cowpox and after successfully finding this to be effective, "mass infecting" people with Cowpox took place.
This reduced mortality by Smallpox drastically.
Cowpox and Smallpox are closely related but Cowpox only gives the disease in a very mild form in humans. This most likely because it has developed towards cows and not humans.
Diseases do not cross the species barrier easily.
As a result of the similarities between the two, human bodies start building up an immune respons against both diseases even if only Cowpox is present.
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What else can I help you with?
What year was the smallpoxs vaccine invented?
in 1798 by edward jenner
What are facts about Edward Jenner and his discovery of a vaccine for smallpoxs?
Edward Jenner then trained in Chipping Sodbury, Gloucestershire as an apprentice to Daniel Ludlow, a surgeon, for eight years from the age of 14.
Who discovered for the first vaccine?
Louis Pasteurdiscovered vaccine for the first time
When does the polio vaccine discovered?
Discovered in 1952 by Dr. Salk.
In 1950 what vaccine was discovered?
polio
Who discovered a polio vaccine?
Jonas Salk
Discovered a vaccine for polio?
Jonas salk
Who discovered rabbit vaccine?
Louis Pasteur
Who discovered a vaccine for polio?
Jonas Salk developed the first vaccine in 1952.
Who discovered bcg vaccine?
Bacille Calmette-Guerin (names of two French scientistswho prepared this vaccine)
Was the Chickenpox discovered in Japan?
No the chickenpox virus was not discovered in Japan. The vaccine for chickenpox was discovered in Japan in the 1970's.
What was the animal that helped with vaccine discovery?
the animal was a cow and the vaccine was discovered by Edward Jenner who cured small pox as well
