Why does your temperature rise when you get a bacteria or a virus?

Answer 1

When you have a virus (E.G the norovirus) Your temperature is over 38.0. If your temperature is 38.0 I would go and see your GP.

If it is lower than 36.9 you definitely haven't got a virus.

Answer 2

A fever is a direct response of the immune system. The body will attempt to destroy the infectious agents by raising the core body temperature. This increase helps create an environment unsuitable to bacterial growth as well as disrupts metabolism and function of the infecting agent.

Answer 3

When you have a bacterial or viral infection, your body's immune response is triggered to fight off the infection. One way your body fights infections is by increasing its temperature, which can help to create an environment that is less favorable for the growth and replication of the bacteria or virus. This increase in temperature is called a fever.