TY - SER AU - Spilk,F.R. AU - Silva,A.D. AU - Batista,H.B.C.R. AU - Oliveira,A.P. AU - Winkelmann,E. AU - Franco,A.C. AU - Porciúncula,J.A. AU - Roehe,P.M. TI - Field evaluation of safety during gestation and horizontal spread of a recombinant differential bovine herpesvirus 1 (BoHV-1)vaccine KW - BOVINO KW - HERPESVÍRUS KW - VACINA ER -