Molecular typing of the recently expanding subtype B HIV-1 epidemic in Romania: Evidence for local spread among MSMs in Bucharest area

► The most frequent route of infection in subtype B patients was MSM transmission. ► Many of the patients acquired the infection abroad, in Western European countries. ► A local transmission network has been identified. ► This network includes mainly MSM living in the Bucharest area. ► Subtype B local transmission network is recent, dating at the beginning of the 90s.