It's been described as one of the most horrific medical treatment disasters in the history of the NHS - thousands of people infected with HIV, Hepatitis C and other viruses during blood transfusions in the 1970s and 80s.
A public inquiry has opened into the contaminated blood scandal which is thought to have killed at least 2,400 people. It will answer questions about whether there was a cover-up.
The hearings started with a commemoration of the victims in London - on a day that many thought would never come. Mary Stanley reports.