Short communication: retrospective study to time the introduction of HIV type 1 non-B subtypes in Lyon, France, using env genes obtained from primary infection samples.

Abstract excerpt

Using blood samples from primary HIV-1 infection (PHI) patients obtained in Lyon, France, we characterized the newly transmitted HIV-1 variants in this area during the 1992-1996 period. As PHI samples allowed the precise timing of the transmission event, we were able to date the introduction of non-B subtypes or recombinant forms of the virus in Lyon. Genomic DNA from 18 HIV-1-positive patients at primary...

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