When seven-year-old Jasmi Lindberg Cooke's cancer returned in 2017, doctors said a blood stem cell transplant was her best hope of survival.
There was no match available for the little girl from Bury St Edmunds in Suffolk.
The charity DKMS then put out the appeal JoinforJasmi urging people to join the donor register. It gathered celebrity support, including Ed Sheeran. It led to thousands more people joining the donor register.
It's six months since Jasmi's successful transplant,
- Click to watch a report by ITV News Anglia's Elodie Harper