Abstract: In particular, the '
a' determinant surface gene mutations (
sT125S,
sA128V,
sQ129H/R,
sT131I,
sC137S,
sT143M,
sD144D/E,
sG145R,
sT148P) and the majority of clustered/multiple as well as drug selected immune escape
HBsAg mutations were more prevalent