Introduction: Although
RT E138K was observed as with the other subtypes, it was followed by
RT K101E to yield the unique double substitution
RT E138K/
K101E instead of
E138K/
L100I.
Introduction: By contrast, under the same conditions,
RT substitutions
L100I and
K103N were the major substitutions associated with EFV, and
E138K and
K101P substitutions were the 2 most common resistance pathways in selection studies with RPV.