Question

4) What are vaccines? How does a vaccine work in treating diseases?

Answer 1

Answer:

a preparation usually containing weakened or killed microorganisms that is given usually by injection to increase protection against a particular disease ....

Answer 2

Answer:

A vaccine stimulates your immune system to produce antibodies, exactly like it would if you were exposed to the disease. After getting vaccinated, you develop immunity to that disease, without having to get the disease first. This is what makes vaccines such powerful medicine.

Step-by-step explanation:

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