Fig 1. Phylogenetic analysis of the HIV-1 pol region based on neighbour-joining methods was constructed with MEGA X software.

The codes of the reference sequences have the acronym “Ref.” at the end. The HIV-1 subtype for each sequence is written at the beginning of the code followed by the sample number in the bitwise sign. (For example D|56479|. Where D is the subtype and |56479| is the sample code).