| Co-factors | Blood transfusion | AIDS symptoms | General |
| HIV/AIDS Surveillance Report |
| US Centers for Disease Control & Los Angeles County Department of Health Services |
| | “41 adults/adolescents and 2 children developed AIDS after receiving blood screened negative for HIV antibody. 13 additional adults developed AIDS after receiving tissue, organs, or artificial insemination from HIV-infected donors. Four of the 13 received tissue, organs, or artificial insemination from a donor who was negative for HIV antibody at the time of donation. ” |
| | U.S. HIV and AIDS cases reported through December 2001. CDC. 2002;13(2). | 2002 |