Why are vaccines useful?
a)They can cure viral infections.
b)They increase the output of white blood cells.
c)They are able to help the body build an immune response against the virus.

Respuesta :

The answer to this is C) They are able to help the body build an immune response against the virus. Although vaccines do this, it is not a guarantee that it will cure the viral infection.
I believe the answer to be C. Vaccines aren’t a guarantee but they do assist in keeping your body healthy. Hope you found my answer to be helpful!