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[1]Carpenter T. E.,Berry S.L.&Glenn J.S.(1987).-Economics of Brucella ovis control in sheep:epidemiologic simulation model.JAVMA,190(8),977-982.[2]Cousins D. V.(2001).-Mycobacterium bovis infection and control in domestic live-stock.In Mycobacterial infections in domestic and wild animals(E.J.B.Mann