Description of an HIV-1 BC recombinant virus identified in a pediatric patient in the city of São Paulo.

This case report refers to a 10-year-old HIV-1 infected patient, who was found to harbor a BC recombinant virus. This child lives in São Paulo and was infected by the mother-to-child route. Phylogenetic analyses revealed that this mosaic virus shares common breakpoints in the polymerase region with the recently published CRF31_BC.