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Current Viral Load Detection Limits

Sep 27, 2008

I know various tests are approved for different dection limits; what is the lowest detection limit for viral load tests currently being used? From my research it looks like Abbot has a RealTime HIV-1 assay that has a lower limit of 25 copies/mL, but that was as of 2006. Any new tests out there that are more sensitive? Thanks!

Response from Dr. Holodniy

The Abbott test is 40 copies/mL. People argue about the lower level of detection (LLD), but for most approved assays it's between 40-75. There are experimental assays that claim LLDs of 5 copies or less/mL

decrease of cd4

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