11.   Donated blood, though extensively screened for diseases such as hepatitis and HIV, may carry unknown viruses or cause side effects.

12.   Each unit of donated blood may go to as many as three patients.

13.   Donated blood is now heated and screened to eliminate the virus, Swindlehurst said.

14.   Finally, all donated blood is tested for HIV, hepatitis B and C, syphilis and other diseases.

15.   Half donated money, one-fourth donated blood and one in five helped raise money.

16.   HemaSure Inc. said it fired its top executives to cut costs and turn around the unprofitable maker of products to increase the safety of donated blood.

17.   Hemopure was approved last month for use in South Africa, the first time an alternative to donated blood was approved for use in humans anywhere.

18.   In theory, such products could have numerous advantages over donated blood.

19.   It is unknown how many contracted HIV through donated blood without developing AIDS because being HIV-positive is not a reportable condition.

20.   Of these contributors, half donated money, one-fourth donated blood and one in five helped to raise money.