The application describes recombinant BoHV-1 triple mutant viruses that express protective antigens of other bovine respiratory viruses associated with Bovine respiratory disease complex (BRDC).L'invention concerne des virus triple mutant BoHV-1 de recombinaison exprimant des antigènes protecteurs d'autres virus respiratoires bovins associés au complexe respiratoire bovin (BRDC).