Result: Four weeks after delivery, wild-type NVP-R susceptible virus was nearly replaced with variants carrying individual
non-nucleoside reverse transcriptase inhibitor (
NNRTI)-resistance mutations such as
K103N,
V106M,
Y188L and
G190A, and importantly, the generation of a major clonally-amplified variant carrying
K103N mutation in the mammary gland compartment (Figure 3).