Immunogen sequence: MAPNASCLCV HVRSEEWDLM TFDANPYDSV KKIKEHVRSK TKVPVQDQVL LLGSKILKPR RSLSSYGIDK EKTIHLTLKV VKPSDEELPL FLVESGDEAK RHLLQVRRSS SVAQVKAMIE TKTGIIPETQ IVTCNGKRLE DGKMMADYGI RKGNLLFLAC YCIGG. UBD qualifies as a marker for an interferon respons