“…Although B clade still predominates, with higher prevalence among women and PWID, there are several clades (A1, B, C, F1 and H) and CRFs (namely CRFs; 01_AE, 02_AG, 04_cpx, 05_DF, 14_BG, and 36_cpx) circulating among MSM and PWID, increasing the HIV-1 epidemic heterogeneity Ivanov et al, 2013). In Serbia non-B clades (i.e G, C, A, F, CRF01 and CRF02) has mainly been transmitted heterosexually (Siljic et al, 2013;Stanojevic et al, 2002). In Montenegro there is a low prevalence of subtype A and C viruses.…”