Abstract
Assessment of viral load is one of the best predictors of clinical progression, as well as the main parameter to assess treatment response in HIV-positive patients. Reproducible and sensitive assays based on real-time PCR technology have been developed to quantify HIV in the bloodstream of infected persons. Recent improvements have allowed reliable measurements of viremia in non-B subtypes. Testing of samples other than serum or plasma has been challenging, but is particularly important for developing countries.
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