Roddick explained that her hepatitis C was unexpectedly diagnosed in 2004, following a blood test that was part of a medical examination needed for a life insurance policy. The blood test indicated abnormal liver function and subsequent blood tests diagnosed hepatitis C. Roddick explained that she had a large blood transfusion in 1971, after the birth of her younger daughter, and that she was convinced that the transfusion had infected her with hepatitis C. This was about twenty years before blood donors in the United Kingdom were screened for hepatitis C.