1.   Among the most disturbing features of the variant, called Type O, is that it escapes detection by some commercially available tests used to screen blood for HIV.

2.   But Piot, fresh from a visit to a blood bank, knew better because the bank had no laboratory kits to screen blood before transfusions.

3.   During office visits, Warner screened his blood for tumor markers, which flag bad cells.

4.   Federal prosecutors have indicted a second New York Blood Center supervisor on charges of tampering with tests intended to screen blood for HIV and other infectious diseases.

5.   Official blood banks are supposed to screen blood for HIV.

6.   The hospital has no ultrasound machine, no capacity to treat heart disease or cancer, nothing to screen blood.

7.   The U.S. Centers for Disease Control and Prevention in Atlanta is screening manatee blood.

8.   While it singles out no one, the report sharply criticizes federal health officials for delays in using methods to screen donated blood sooner.

9.   Donated blood is rarely screened and there are no quality control or national guidelines for transfusions.

10.   It said the blood bank failed to screen blood for the AIDS virus.