Actinobacillus pleuropneumoniaeActinobacillus InfectionsPleuropneumoniaActinobacillusSwine DiseasesHaemophilusSwineSerotypingSalmonella typhimuriumHemolysin ProteinsVirulenceBacterial ProteinsAspartate Ammonia-LyaseSalmonella entericaAntibodies, BacterialGenes, BacterialTransferrin-Binding ProteinsDNA, BacterialSalmonella Infections, AnimalHaemophilus InfectionsPleuropneumonia, ContagiousMolecular Sequence DataGene Expression Regulation, BacterialBacterial VaccinesSequence Analysis, DNACytotoxins