Diagnosis of primary HIV-1 infection is challenging due to the presence of a serological window; thus, HIV-1-RNA quantitation and/or measurement of p24 antigenemia are recommended in such cases. A patient was diagnosed at the time of primary HIV-1 infection, he harbored a CFR02_AG subtype virus; quantitation of plasma HIV-1-RNA yielded an undetectable result according to one commercial assay, while HIV-1-RNA was detectable when measured with three other assays.

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http://dx.doi.org/10.1002/jmv.21827DOI Listing

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