Little Madeline Reeder from Lowestoft has a medical condition so rare that only seven people in the world's population of seven billion, have it.
It's so rare it doesn't even have a name. ITV News Anglia's Natalie Gray went along to meet Madeline and her family. Click above to watch her report.
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The car reportedly used as part of a terror attack in Westminster was registered in Chelmsford.
The region's MPs are all thought to be safe after an apparent attack at the Palace of Westminster in London.