Efficacy of a non-adjuvanted, modified-live virus vaccine in calves with maternal antibodies against a virulent bovine viral diarrhea virus type 2a challenge seven months following vaccination. The Bovine Practitioner, [S. l.], v. 45, n. 1, p. 23–31, 2010. DOI: 10.21423/bovine-vol45no1p23-31. Disponível em: https://bovine-ojs-tamu.tdl.org/bovine/article/view/2767. Acesso em: 22 nov. 2024.