Immunogen sequence: GVAALQNNFF ITNLMDVLQR TPGSNAEESS ILETVTAVAA GKPLSCPNHD GNVMEFYCQS CETAMCRECT EGEHAEHPTV PLKDVVEQHK ASLQVQLDAV NKRLPEIDSA LQFISEIIHQ LTNQKASIVD DIHSTFDELQ KTLNVRKSVL LMELEVNYGL KHKVLQSQLD TLLQGQESIK SCSNFTAQAL NHGTETEVLL V; Positive Sa