Question

Vaccination is a process of injecting a dead or weakened form of a germ into the body. How does this help strengthen the immune system?

1-It allows the body to increase its internal temperature.
2-It allows the body to regulate the inflammation response.
3-It allows the body to keep germ information for future infections.
4-It allows the body to increase its desire to eat healthy food.

Answer 1

it allows the body to keep germ information for future infection