June 7, 2000
People have received blood transfusions for decades; however, as discussed above, AIDS-like symptoms were extraordinarily rare before the appearance of HIV. Recent surveys have shown that AIDS-like symptoms remain very rare among transfusion recipients who are HIV-seronegative and their sexual contacts. In one study of transfusion safety, no AIDS-defining illnesses were seen among 807 HIV-negative recipients of blood or blood products, or 947 long-term sexual or household contacts of these individuals (Aledort et al., 1993).
In addition, through 1994, the CDC had received reports of 628 cases of AIDS in individuals whose primary risk factor was sex with an HIV-infected transfusion recipient (CDC, 1995a), a finding not explainable by the "risk-AIDS" hypothesis.