Former model Serena was married to Jamaica-born grandee Robert Delisser.
They had two children, Joshua and Jazzy.
Serena says: 'When Jazzy was two, she was ill with bronchitis, so I took her for tests. It was then that I learnt that she had hepatitis C – and so did I. I am lucky. Although I have the virus I have not, so far, had any symptoms: my liver is not badly scarred and I haven’t needed any treatment.
'I know a lot of people with hepatitis C who have not passed it on to their children and, fortunately, my other children are free of it. But somehow I had passed it on to Jazzy, and her liver has already been affected. It is a mother’s worst nightmare. My focus since then has been on getting Jazzy well.’
Four years later she left her husband and returned to Britain so her daughter could be treated at King’s College Hospital, the world’s leading centre for paediatric liver disease.