1.   Through infected blood and blood products entering the bloodstream.

2.   ...a virus which is spread mainly by infected blood.

3.   Also, Groopman says, for infection to occur, you need to be exposed to a certain amount of virus and infected blood.

4.   American Red Cross officials say the restrictions are designed to reduce the risks from infected blood.

5.   A device that loads genetic material into a sequencer made by Visible Genetics and tests samples of infected blood.

6.   A medical team Tuesday shipped out the first samples of infected blood to a laboratory South Africa in an effort to identify the disease.

7.   AIDS is most often spread through sexual contact, sharing contaminated needles and infected blood products, but also can be passed to children from infected mothers.

8.   AIDS is most often spread through sexual contact, sharing contaminated needles and infected blood products.

9.   AIDS, the acquired immune deficiency syndrome, is most often spread through sexual contact, sharing contaminated needles and infected blood products.

10.   He knows the disease could be contracted through transfusions and exposure to infected blood.