Biology, asked by subhanshaikabdul2, 23 hours ago

write about discovery of smallpox vaccine? 7 to 8 lines​

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Answered by rashu7894
0

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.

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