Actinobacillus InfectionsActinobacillusActinobacillus pleuropneumoniaeAggregatibacter actinomycetemcomitansActinobacillus suisPleuropneumoniaActinobacillus equuliSwine DiseasesHaemophilusAggressive PeriodontitisPeriodontitisSwineAggregatibacterExotoxinsPasteurellaceaePasteurellaCytotoxinsSerotypingActinobacillosisHemolysin ProteinsActinobacillus seminisBacterial ToxinsPeriodontal DiseasesAntibodies, BacterialDNA, BacterialGingivaMolecular Sequence DataBacterial ProteinsTransferrin-Binding ProteinsDental PlaqueGenes, Bacterial