peripheral t lymphocytes from asymptomatic hbsag carriers and hepatitis b ( hb ) immune ( naturally acquired or vaccine induced ) donors were induced into interleukin-2 ( il-2 ) secretion by plasma-derived hbsag and the translational products of the s- and pre-s2+s gene of hb virus ( hbv ) in vitro .
C0019163
hepatitis b
C0019168
hbsag