Video report by ITV News Anglia's Raveena Ghattaura
A mum from Cambridgeshire is raising awareness of a rare disease which left her toddler unable to walk or talk.
Three-year-old Theo King was taken to hospital after what his parents thought was a fever.
But, after a number of scans and tests, doctors at Addenbrooke's hospital diagnosed him with Kawasaki disease - a illness which causes inflammation in the body.
The disease affects around eight in 100,000 children every year.
What is Kawasaki disease? (source: NHS England)
Kawasaki disease causes swelling of the blood vessels of the heart and the nymph nodes.
It is commonly found in children under five-years-old. Most children who are treated recover from the disease without long-term problems. If left untreated, it can lead to serious heart disease.
The illness is not contagious.
What are the symptoms?
A fever lasting at least 5 days
A body rash
Swollen, red, cracked lips and tongue
Swollen, red feet and hands
Swollen lymph nodes in the neck