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.
It is possible that the main title of the report AIDS (Acquired Immune Deficiency Syndrome) is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.