The Warsaw Treaty Organization (also known as the Warsaw Pact) was a political and military alliance established on May 14, 1955 between the Soviet Union and several Eastern European countries.
1 Donors with blood type A... can donate to recipients with blood types A and AB. 2  Donors with blood type B... can donate to recipients with blood types B and AB.  Donors with blood type AB...
An individual who is blood type AB neg can... -> Donate to types A, B, and AB, but not type O. -> Donate to all blood types in moderate amounts. -> Receive any blood type in moderate amounts except that with the Rh antigen. -> Receive types A, B, and AB, but not type O.