Biology, asked by cardellzx, 1 year ago

When Jenner developed the first vaccine he was using the observation of milk maids who After having cowpox they were immune to smallpox After having chickenpox they were immune to smallpox After being infected with the flu virus they were immune to smallpox After developing HIV they were immune to smallpox

Answers

Answered by Ankur101

2

jek3b hs8eve si8ge jsifwks

Answered by shivamkumar34

2

the diseases by AIDs

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