Question

4] How vaccine of smallpox discovered and how it works?​

Answer 1

Answer:

The smallpox vaccine, introduced by Edward Jenner in 1796, was the first successful vaccine to be developed. He observed that milkmaids who previously had caught cowpox did not catch smallpox and showed that inoculated vaccinia protected against inoculated variola virus.

Answer 2

Answer:

Smallpox vaccine was first found in 1796, by "edward jeener" .

it produces antibodies in our body which fight with the virus or that organism.

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