HIV-1 is the virus that causes almost all the cases of AIDS worldwide. A related virus, HIV-2, was first isolated in people in West Africa in 1986. Some people who are infected with HIV-2 appear to have an AIDS-like illness, but most do not have symptoms.
You should be tested for HIV-2 infection if you:
Because HIV-2 is transmitted in the same ways as HIV-1, people who have HIV-2 should follow the same precautions as people who have HIV-1. It is possible to be infected with both HIV-1 and HIV-2.
Since 1992, blood and organs donated in the United States have been screened for HIV-2, so the risk of developing HIV-2 infection from a blood transfusion or organ transplant is extremely low.
eMedicineHealth Medical Reference from Healthwise
To learn more visit Healthwise.org
© 1995-2012 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Resources for Staying Well
- HIV-AIDS: Myths and Facts
- Understanding The Symptoms of AIDS/HIV
- The Top 10 Myths and Misconceptions About HIV and AIDS