Blood Types, AIDS and HIV

Blood Types There are 4 blood types: A B AB O

Antigens and Antibodies for the Blood Types AB O Antigens (on RBC) A B A, B none Antibodies (in plasma) anti – B anti-A none anti-A, anti-B

Matching Blood Types for Transfusions If you have blood type: You can receive: A B AB O A, O B, O A, B, AB, O O

Universal Donor/Recipient Universal Donor = O Universal Recipient = AB Blood Transfusion – is the transfer of blood from one human to another human’s circulatory system Rh factors – group of antigens found on RBCs Either + or -

What is the most common blood type in the USA? O+……………….. A+……………….. B+……………….. O-………………... A-………………... AB+……………… B-………………... AB-………………. 38% 34% 9% 7% 6% 3% 2% 1%

AIDS Acquired Immune Deficiency Syndrome Damages the immune system so you can’t fight off disease

HIV Human Immunodeficiency Virus Attacks the helper T cells of the immune system

How is AIDS spread? Unprotected sexual activity Blood to blood contact Sharing needles or intravenous drug use Maternally - By an infected pregnant woman to her unborn child