What happens to the number of white blood cells when an infection is present?

Answer 1

The presences of a large number of white bloods are usually a good indicator of infection due to the fact that white blood cells fight off pathogens. If a wound becomes infected that means that bacteria, viruses, fungi, or any other type of foreign body then white blood cells rush to the site to try and prevent the infection from spreading. This is sometimes how doctors are able to see if there is an underlying problem with a patient, such as an infection. They take blood samples and see the concentration of white to red.

Answer 2

White blood cells are your body's active immunity. When your body is fighting infection, in produces more white blood cells and sends them to the infected area to fight it.
Because they mutate in to a great amount to have enough white blood cells to fight the infection or whatever it may be.

Answer 3

White blood cells fight infection, so when you get sick, they increase in number so that there are more to fight the infection.

Answer 4

decreases