Vaccines work by showing the body a microbial mugshot of a tiny perpetrator (such as a virus or bacterium) that is a threat to your body. This triggers an immunological fire drill against the invader, enabling your body to react much faster and better to a real attack. It’s this immune response that can cause some side effects.
This story is from the September/October 2021 edition of Very Interesting.
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This story is from the September/October 2021 edition of Very Interesting.
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