Biology, asked by shiyou836, 9 months ago

Hello, need help on biology.

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Answered by Anonymous

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Vaccines are made by taking viruses or bacteria and weakening them so that they can't reproduce (or replicate) themselves very well or so that they can't replicate at all. Children given vaccines are exposed to enough of the virus or bacteria to develop immunity, but not enough to make them sick.

Answered by chikku123441

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PLEASE MARK ME AS BRAINLIST ANSWER...

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