What happened in the UK's infected blood scandal? Inquiry report due Monday

FILE - An National Health Service sign is seen with the Big Ben clock face and the Elizabeth Tower in the background, in London, Britain, Jan. 13, 2017.

The final report of the U.K.'s infected blood inquiry will be published Monday, nearly six years after it began looking into how tens of thousands of people contracted HIV or hepatitis from transfusions of tainted blood and blood products in the 1970s and 1980s.