Residual HIV-1 RNA in Blood Plasma of Patients Taking Suppressive Highly Active Antiretroviral Therapy

Abstract
The discovery of highly active antiretroviral therapy (HAART), which represents a combination of agents effective against human immunodeficiency virus 1 (HIV-1) usually including reverse transcriptase and protease inhibitors, has led to successful treatment of many patients in diverse cohorts in the developed world.1,2 Such patients have demonstrated "undetectable" levels of viral RNA in the peripheral blood plasma after treatment with HAART. Most importantly, correlations with these alterations of in vivo HIV-1 expression with HAART have included dramatic changes in mortality and morbidity.3 Thus, suppressive HAART has assisted in converting HIV-1 infection from a poorly treatable and fatal disease into one that can be, in many patients, chronic or at least subacute.