Immunogen sequence: MAAPQDVHVR ICNQEIVKFD LEVKALIQDI RDCSGPLSAL TELNTKVKEK FQQLRHRIQD LEQLAKEQDK ESEKQLLLQE VENHKKQMLS NQASWRKANL TCKIAIDNLE KAELLQGGDL LRQRKTTKES LAQTSSTITE SLMGISRMMA QQVQQSEEAM QSLVTSSRTI LDANEEFKSM SGTIQLGRKL ITKYNRRELT; Positive Samp