case_images: PMC6532492_01
case_images: PMC6532492_02
case_images: Phylogenetic tree of HIV-1 pol genome segments (2135-3338 of HXB2 co-ordinates) derived from the child and parantal grandmother. Posterior probability of 1.0 confirms the transmission on linkage about 3.07 years before date of blood collection (September 2015)
case_images: IJSTD-40-73-g001.jpg
case_images: PMC6532492_02_IJSTD-40-73-g001.jpg
case_images: F1
case_images: Phylodynamic analysis showed clustering of both the sequences at one node with posterior probability of 1.0, implying that the paternal grandmother was probably the source of HIV-1 infection [Figure 1].