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@WHO: How do #VaccinesWork?   1⃣Vaccines contain weakened non-dangerous parts of an antigen 2⃣It's enough that our body can learn to build the specific antibody 3⃣This will prompt our immune system to respond & defeat the real antigen in the future   👉https://t.co/RvHsRRprmJ https://t.co/9dSttOfOVT

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