Most of us have received vaccines at some point in our lives whether during childhood at school, on a doctor’s visit, or later as part of a health campaign. But have you ever stopped to think about what a vaccine actually does? In simple terms, it works like a practice drill for your immune system, teaching your body how to recognize and fight harmful germs before you ever encounter the real threat. This clever bit of science has saved countless lives over the years. The quiz below is just a fun way to see how much you already know about vaccines and the protection they provide.
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