AIDS

AIDS

AIDS	Case definition: proven HIV infection and an AIDS defining illness, in the absence of another cause of immunosuppression. The CDC also includes proven HIV infection with a CD4 count of <0.2 x 10⁹/L in their case definition.
AIDS defining illness
Presumptive or definitive diagnosis of
Oesophageal Candidiasis
CMV retinitis with loss of vision	See Cytomegalovirus infection .
Kaposi’s sarcoma
Disseminated Mycobacterial infection
Pneumocystis carinii pneumonia	See Pneumocystis infection .
Cerebral Toxoplasmosis
Recurrent Pneumonia	Defined as >1 episode of bacterial or unspecified pneumonia within a year.
Pulmonary Tuberculosis
Invasive cervical carcinoma	See Cervical lesion .
Definitive diagnosis of
Candidiasis of the trachea, bronchi or lungs
Extrapulmonary cryptococcosis	See Cryptococcal infection .
Disseminated Coccidioidomycosis
Disseminated Histoplasmosis
Cryptosporidiosis or isosporiasis,with diarrhoea persisting >1 month	See Cryptosporidial infection .
Cytomegalovirus infection	Affecting any organ other than liver, spleen or lymph nodes.
Herpes simplex infection	Causing a mucocutaneous ulcer that persists for >1 month or bronchitis, pneumonitis or oesophagitis.
Progressive multifocal leukoencephalopathy	See under Encephalitis .
HIV encephalopathy
HIV wasting syndrome
Tuberculosis
Salmonella septicaemia
Primary cerebral Lymphoma (non-Hodgkins)
Other non-Hodgkin’s lymphoma of B cell or unknown immunological phenotype	Includes the following histologic types: (i) small, non-cleaved cell lymphoma or (ii) high grade lymphoma esp diffuse large cell lymphoma and immunoblastic lymphoma.