AIDS
Last reviewed 01/2018
This is a syndrome that is based on evidence of human immunodeficiency virus (HIV) infection and the development of one or more of a list of opportunistic infections or malignancies for which there is no other explanation (1).
The most common of the defined diseases accounting for up to 80% of the defined AIDS cases are Pneumocystis carinii pneumonia and Kaposi's sarcoma.
The origin of HIV is unknown. The HIV-1 virus has been found in blood samples in Africa that date from the 1960's.
The incubation period from infection with the virus to development of AIDS is highly variable (approximately 1 year to 9 years).
Reference:
recommended groups for routine HIV testing
WHO clinical staging of HIV/AIDS for adults and adolescents with confirmed HIV infection
pattern of infection in HIV and different CD4 counts
complications of HIV infection
clinical care for people with HIV
HIV Post-Exposure Prophylaxis Following Sexual Exposure (PEPSE)
risk of HIV transmission per exposure from a known HIV - positive individual not on ART