title: Three hospital patients have been injected with HIV-infected blood since 1989.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000635:transmission*; D004866:Equipment Contamination; D006760:Hospitalization; D006801:Humans; D007267:Injections; D010361:Patients; D013594:Syringes; D014481:United States