▁caps id ▁protein . ▁This ▁protein ▁acts ▁as ▁an ▁ant igen ▁for ▁the ▁Ig G ▁ant ib od ies . ▁ ▁Tre at ment ▁and ▁control ▁No ▁treatment ▁is ▁available ▁for ▁the ▁disease . ▁Test ing ▁and ▁removing ▁positive ▁animals ▁from ▁the ▁her d ▁is ▁one ▁method ▁of ▁control . ▁In ▁her ds ▁where ▁the ▁disease ▁is ▁w ides p read , ▁it ▁is ▁important ▁to ▁limit ▁spread ▁by ▁avoid ing ▁contact ▁with ▁blood ▁between ▁animals . ▁ ▁Ep ide mi ology ▁and ▁er adic ation ▁efforts ▁In ▁Europe ▁attempts ▁were ▁made ▁to ▁er ad icate ▁the ▁virus ▁by ▁c ull ing ▁inf ected ▁animals . ▁The ▁first ▁country ▁considered ▁to ▁be ▁free ▁of ▁in fection ▁was ▁Den mark . ▁So on ▁the ▁United ▁Kingdom ▁followed . ▁Like ▁the ▁North ▁American ▁states , ▁those ▁of ▁the ▁Eastern ▁b loc ▁in ▁Europe ▁did ▁not ▁try ▁to ▁get ▁rid ▁of ▁the ▁virus . ▁But ▁the ▁Eastern ▁Europe ▁states ▁started ▁to ▁become ▁le uk osis - free ▁after ▁the ▁political ▁changes ▁at ▁the ▁end ▁of ▁the ▁last ▁century . ▁A ▁quote ▁from ▁a ▁US DA ▁fact ▁sheet , ▁" The ▁high ▁individual ▁animal ▁pre val ence ▁of ▁B L V ▁reported ▁in ▁the ▁D air y ▁ 1 9 9 6 ▁study ▁suggests ▁that ▁testing ▁and ▁c ull ing ▁ser op os itive ▁animals ▁may ▁not ▁be ▁a ▁cost ▁effective ▁method ▁to ▁control ▁the ▁disease . ▁Instead , ▁prevent ing ▁disease ▁transmission ▁by ▁implementing ▁prevent ive ▁practices ▁would ▁likely ▁be ▁more ▁cost - effect ive ."