Abstract: In particular, the frequency of
T69N/S/A increased sharply after more than 48 months of zidovudine monotherapy.
Abstract: The frequencies of
K70R,
T215S/Y/F (i.e., mutation of T at codon 215 to S, Y, or F),
D67N/E,
K219Q,
T69N/S/A,
M41L, and
L210W mutations conferring resistance to zidovudine were 57.6, 36.4, 36.4, 27.2, 24.2, 21.2, and 12.1%, respectively.