21.   Previously, hemophiliacs had to take clotting factors extracted from donated blood.

22.   Substitutes have significant advantages over donated blood, and the development of usable products has long been a tantalizing goal.

23.   Testing and the use of questionnaires that screen out high-risk donors have made the transmission of AIDS through donated blood extremely rare.

24.   The donated blood was used to test medical instruments, Nieto said.

25.   The manufacturers say their products will also be less vulnerable to contamination than donated blood supplies, especially those in blood banks in places hard hit by AIDS.

26.   The local Red Cross did discard some donated blood in the days after the terrorist attacks but it was no more than usual, Juliusson said.

27.   The once-rare practice of stripping out white blood cells from donated blood, to reduce side effects from transfusions, has become commonplace.

28.   The report criticizes health officials for delays in setting up new testing methods that would have detected the AIDS virus in donated blood earlier.

29.   The transfusions occurred before there were tests to detect the virus in donated blood.

30.   They crossed into the United States at Buffalo, N.Y., where they stopped and Gore donated blood.