Abstract: Most
OBI strains were wild-type HBV, but some substitutions
V168A,
S174 N,
V177A,
Q129R/L/H,
G145A/R in
S region of genotype B (OBIB) and
T47K/V/A,
P49H/L,
Q101R/H/K,
S174 N,
L175S,
V177A,
T118 M/R/K,
G145R/A/K/E,
R160K/N in
S region of genotype C (OBIC) strains were identified in high frequency.