by the early 1980s it was known that both hepatitis and HIV could be dealt with by good screening of donors, and with heat. But this was costly: the clotting factors weren’t destroyed but they were reduced so that more plasma was needed. Also, companies had lots of inventory of untreated factor on the shelves. They decided that it had to go somewhere. At a 1984 conference at the Centers for Disease Control in Washington, DC, a minority argued strongly that all non-heat-treated product should be discarded. The majority disagreed: it should be a matter for local medical personnel.
