Question

If we take a vaccine for chickenpox how does it prevent the disease?

Answer 1

Answer:

The chickenpox vaccine prevents almost all cases of severe illness. Since the varicella vaccination program began in the United States, there has been over 90% decrease in chickenpox cases, hospitalizations, and deaths. For more information about chickenpox vaccine, see Vaccination.

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Answer 2

Explanation:

A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria. Likewise if you take the vaccine for chickenpox then that vaccine is likely to contain weakened or heat killed virus of chickenpox.