Immunogen sequence: PRKGRLIVCG HGTLERDGVF CLLSDDHGAS WRYGSGVSGI PYGQPKQEND FNPDECQPYE LPDGSVVINA RNQNNYHCHC RIVLRSYDAC DTLRPRDVTF DPELVDPVVA AGAVVTSSGI VFFSNPAHPE FRVNLTLRWS FSNGTSWRKE TVQLWPGPSG YSSLATLEGS MDGEEQAPQL YVLYEKGRNH YTESISVAKI SVYGTL Positiv