AIDS Case Definition

A person who has tested HIV positive is diagnosed with AIDS when:

• the person’s CD4 cell count falls below 200 cells/ml

OR

• the person is diagnosed with any of the following conditions or diseases:

1. Candidiasis of bronchi,
2. trachea or lungs Candidiasis,
   
3. esophageal Cervical cancer,
   
4. invasive Coccidioidomycosis,
   
5. disseminated or extrapulmonary Cryptococcosis,
   
6. extrapulmonary Cryptosporidiosis,
   
7. chronic intestinal (>1 month duration)
   
8. Cytomegalovirus disease (other than liver, spleen, or nodes)
   
9. Cytomegalovirus retinitis (with loss of vision)
10. Encephalopathy,
    
11. HIV-related
12. Herpes simplex: chronic ulcer(s) (>1 month duration) Histoplasmosis,
13. disseminated Isosporiasis,
    
14. chronic intestinal (> 1 month duration) Kaposi’s sarcoma Lymphoid interstitial pneumonitis (in children) Lymphoma,
    
15. Burkitt’s (or equivalent term)
16. Lymphoma,
    
17. immunoblastic (or equivalent term) Lymphoma,
    
18. disseminated or extrapulmonary Mycobacterium tuberculosis, any site (pulmonary or extrapulmonary) Mycobacterium, other species or unidentified species, disseminated or extrapulmonary Pneumocystis carinii pneumonia Pneumonia,
    
19. recurrent Progressive multifocal leukoencephalopathy Salmonella septicemia,
    
20. recurrent Toxoplasmosis of brain Wasting syndrome due to HIV A person who is HIV negative or of undetermined serostatus may be diagnosed with AIDS when other causes of immunodeficiency are ruled out and the person is definitively diagnosed with one of the AIDS indicator diseases listed above.