Acquired immunodeficiency syndrome (AIDS) and blood products.
D000163:Acquired Immunodeficiency Syndrome / Q000635:transmission*; D001782:Blood Donors; D006467:Hemophilia A / Q000628:therapy*; D006716:Homosexuality; D006801:Humans; D008297:Male; D012952:Societies; D065227:Transfusion Reaction; D014481:United States