Immunogen sequence: KDSEIFTVNG ILGESVTFPV NIQEPRQVKI IAWTSKTSVA YVTPGDSETA PVVTVTHRNY YERIHALGPN YNLVISDLRM EDAGDYKADI NTQADPYTTT KRYNLQIYRR LGKPKITQSL MASVNSTCNV TLTCSVEKEE KNVTYNWSPL GEEGNVLQIF QTPEDQELTY TCTAQNPVSN NSDSISARQL CADIAMGFRT HHTG; Positive