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. 2015 Jan 29;13(1):49–56. doi: 10.1016/j.jesf.2014.10.003

Table 1.

Centers for Disease Control and Prevention classification system for HIV-infected adults and adolescents.

CD4 cell count categories Clinical categories
A
Asymptomatic, acute HIV, or PGL		 B
Symptomatic conditions, not A or C		 C
AIDS-indicator conditions
≥ 500 cells/μL A1 B1 C1
200–499 cells/μL A2 B2 C2
< 200 cells/μL A3 B3 C3

HIV = human immunodeficiency virus; PGL = persistent generalized lymphadenopathy.

Note. From ACSM’s Guidelines for Exercise Testing and Prescription, 8th ed by W.R. Thompson, N.F. Gordon, and L.S. Pescatello LS, 2009. Philadelphia: Lippincot Williams and Wilkins. Copyright 20XX, AETC. Reprinted with permission.