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Viral load tests for sub-types

Jul 27, 1998

Do the usual viral load tests detect the different subtypes of HIV or would different tests be required as for detecting HIV-2? Thank you.

Response from Dr. Holodniy

Of the three widely available viral load tests (PCR, bDNA, NASBA), bDNA seems to be able to detect all type M subtypes the best. NASBA is next in line, and PCR is good for all except type A. Roche is working on modifying the PCR assay to accomodate all of the subtypes. Two other new assays from Digene and Genprobe appear to detect all M subtypes and type O. MH

What is the deal with the VIRCO Assay(s)

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