Abstract: Among them, 7 polymorphisms (
L74I,
K103N,
V106A,
Y181C,
G190A,
T215I and
P225H) were known to be drug resistance mutations, 7 polymorphisms (
E6D,
E35D,
S37N,
I93L,
E169D,
T200V and
T200E were considered to be potential drug resistance mutations, and 6 polymorphisms (
T39A,
K43E,
S68N,
Q197K,
T200V and
E22