hello====.,-.what’s a vaccine.thankyou​

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hello………………………………………….,…..what’s a vaccine.thankyou​

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Sigridomena 5 years 2021-07-17T17:09:31+00:00 1 Answers 21 views 0

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  1. Farah
    0
    2021-07-17T17:11:27+00:00
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    A vaccine is a medical material that mimics the pathogen, but in a harmless way. When our body’s immune fights it off, it remembers how to fight the real pathogen when it enters our body. So, it protects us from diseases.

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