DIAGNOSIS OF HIV INFECTION


Use of "less sensitive" HIV Ab test to diagnose early HIV-1 infection:

p24 Antigen testing can identify many, but not all, cases of primary HIV infection; more specific than HIV RNA testing (Ann. Int. Med. 134:25, 2001--JW)

HIV-1 Quantitative RNA testing--useful in determining "viral load"; both sensitive to 50 RNA copies/mL (thought the Amplicor requires a special centrifugation step to attain that level of sensitivity)