Infection, immunity, and blood transfusion.
D000163:Acquired Immunodeficiency Syndrome / Q000635:transmission; D001782:Blood Donors; D003141:Communicable Diseases / Q000635:transmission*; D006525:Hepatitis, Viral, Human / Q000635:transmission; D006801:Humans; D010272:Parasitic Diseases / Q000635:transmission; D065227:Transfusion Reaction; D014481:United States