Actinobacillus suisActinobacillus InfectionsActinobacillus pleuropneumoniaeActinobacillusSwine DiseasesPleuropneumoniaHaemophilus paragallinarumStreptococcus suisSwineAggregatibacter actinomycetemcomitansHaemophilusBrucella suisSerotypingActinobacillus equuliHemolysin ProteinsBacterial ProteinsAggressive PeriodontitisAntibodies, BacterialPasteurellaceaeTransferrin-Binding ProteinsCytotoxinsAspartate Ammonia-LyaseVirulencePeriodontitisDNA, Bacterial