Immunogen sequence: SALLTEKDAE LEKLRNEVTV LRGENASAKS LHSVVQTLES DKVKLELKVK NLELQLKENK RQLSSSSGNT DTQADEDERA QESQIDFLNS VIVDLQRKNQ DLKMKVEMMS EAALNGNGDD LNNYDSDDQE KQSKKKPRLF CDICDCFDLH DTEDCPTQAQ MSEDPPHSTH HGSRGEERPY CEICEMFGHW ATNCNDDETF; Positive Samp