The rare condition occurs when the bone marrow cannot produce enough new blood cells for the body to function normally, causing about 100 to 150 new cases in the UK each year. The mother of 11-month-old baby, Laura, has urged people to join the Anthony Nolan stem cell register to help children like her son, who was diagnosed with the disease at a young age. The couple are also hoping to raise awareness about the disease and encourage more people to donate to the cause.