Immunogen sequence: MAAVKDSCGK GEMATGNGRR LHLGIPEAVF VEDVDSFMKQ PGNETADTVL KKLDEQYQKY KFMELNLAQK KRRLKGQIPE IKQTLEILKY MQKKKESTNS METRFLLADN LYCKASVPPT DKVCLWLGAN VMLEYDIDEA QALLEKNLST ATKNLDSLEE DLDFLRDQFT TTEVNMARVY NWDVKRRNKD DSTKNKA; Positive Samples