What is HIV virologic failure?

Updated: Jul 01, 2019
  • Author: Nicholas John Bennett, MBBCh, PhD, MA(Cantab), FAAP; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Not uncommonly, successfully treated patients will demonstrate intermittent viremia, with viral loads transiently detectable at low levels (typically, < 400 copies/mL); this appears to occur more commonly with some viral load assays than others. Such “blips” are not thought to represent viral replication or to predict virologic failure. [5] Virologic failure is defined as a confirmed viral load of more than 200 copies/mL; although this is a research definition, it may be useful in clinical practice. [5]


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