Quantification of Viral Loads Lower than 50 Copies per Milliliter by Use of the Cobas AmpliPrep/Cobas TaqMan HIV-1 Test, Version 2.0, Can Predict the Likelihood of Subsequent Virological Rebound to >50 Copies per Milliliter

After 1 year of follow-up, patients on HAART with a baseline viral load (VL) of 50 copies/ml than those with baseline VLs of 20 to 39 and 40 to 49 ( P < 0.001). The time to virological rebound was also significantly shorter ( P < 0.001) for the groups with baseline VLs of 20 to 39 and 40 to 49.