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:
Are from West Africa and practice high-risk
behaviors, such as having more than one sex partner or injecting illegal
Have a sex partner who is from West
Received a blood transfusion in West
Are a child whose mother is infected with
opportunistic infections but do not test positive for
HIV-1 infection. These opportunistic infections may include:
How this information was developed to help you make better health decisions.