Immunogen sequence: PHSSRLKRLF LAPRTQQPGL EVVAEIAGHA PAREQEPPPN PAPAAPAPGE DDPSSWASPR RRKGGLRRTR PTGPREEATA ARGNSIPASR PGDEGVPFRF DFNAFRSRLR HPVLGTRADE SQEPQSQVRA QREKIKEMMQ FAWQSYKRYA MGKNELRPLT KDGYEGNMFG GLSGATVIDS LDTLYLMELK EEFQEAK; Positive Samples