Some people infected with HIV or AIDS diagnosis signals based on the presence of symptoms. on 5 June 1981. have a lot of definitions, epidemiological surveillance, such as the definition and the 1994 expanded World Health Organization AIDS Bangui definition. Clinical examination of patients, but there is no such systems, designed for sensitive or non-specific. (Clinical and laboratory data) in developing countries, the World Health Organization, such as HIV infection or disease in the developed countries, such as the test system used for classification of the CDC.
