Discussion: The mutations
L10F/R,
K20I,
V32I,
I47V/A,
I50L/V,
I54L/A/M/T/S,
A71T,
G73C/T/A,
V77I, and
V82F/T/S, either absent or observed in our subtype B and F1 viruses, were not statistically different in viruses isolated from treated or untreated patients.