Question

how do vaccines work in our body​

Answer 1

Answer:

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Vaccines are like a training course for the immune system. They prepare the body to fight disease without exposing it to disease symptoms. When foreign invaders such as bacteria or viruses enter the body, immune cells called lymphocytes respond by producing antibodies, which are protein molecules.

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Answer 2

Answer:

Our body produces certain antibodies to fight against disease causing microbes. So if dead and decayed microbes are introduced into the body, our body produces certain antibodies and we are protected forever. This way a vaccine works