However, lots is being done to beat meningitis.
If an outbreak of the disease is spotted in a school, doctors are very quickly on the scene to make sure things are under control.
They will make sure every pupil who needs it gets a vaccination.
The Meningitis Research Foundation is also doing more research to find out why young people seem to be affected more than others.
Meningitis Research Foundation has a free 24-hour helpline you can call if you are worried:
0808 800 3344