leukaemia

Days after blood tests, her doctors told her she had leukaemia and would need six months off work for treatment.

At the end of 2005, the singer was diagnosed with chronic lymphocytic leukaemia, which returned in 2015 before he went into remission.

However, just a week later, in early March this year, Ms Knowles was given the "bitter" news the leukaemia had returned.

He credited his daughter Azaylia, who died from a rare form of leukaemia in April 2021, for the opportunities and doors that had been opened for him.

Analysed in the lab, this mutation grew in a different way in different environments to other mutations linked to diseases such as leukaemia, a type of blood cancer.