WHO Concept Note: Surveillance of HIV Drug Resistance in Adults Receiving ART (Acquired HIV Drug Resistance)

This concept note describes methods to assess nationally representative levels of viral load suppression and drug resistance in adults receiving ART through the implementation of a cross-sectional survey.

The main purpose of this survey is to calculate nationally representative prevalence estimates (with associated confidence intervals) of (1) VL suppression and (2) of HIVDR in populations receiving ART for 12 (±3) months and for ≥48 months.