Watch Harmonie-Rose's meningitis video
It is Meningitis Awareness Week and Harmonie-Rose Allen from Bath may be only six years old but she knows all about it.
She has recorded a special video telling people what to look out for and to how to get help.
Harmonie was struck down with meningitis B when she was only 10 months old.
She developed septicaemia and lost both her arms and legs. She was given a less than 10% survival rate but fought through and now Harmonie regularly campaigns for people to be more aware of the symptoms of the potentially deadly disease.
You can find a full list of signs and symptoms on the Meningitis Now website.
The Meningitis Research Foundation also has a useful symptoms checker.
We have been following Harmonie-Rose's progress from being fitted with prosthetics to starting school and to raising thousands of pounds for meningitis research and support. In the latest, Harmonie gets to try out an electric hand.
You can read all about it - and her story - here.