Helicobacter felisHelicobacterHelicobacter InfectionsHelicobacter pyloriRickettsia felisUreaseGastric MucosaGastritisHelicobacter heilmanniiCat DiseasesStomachFelisParietal Cells, GastricCatsDog DiseasesSiphonapteraAntibodies, BacterialStomach NeoplasmsHelicobacter hepaticusDNA, BacterialCtenocephalidesDogsRNA, Ribosomal, 16SRickettsia InfectionsMolecular Sequence DataPeptic UlcerFlea InfestationsClarithromycinMetronidazoleAmoxicillinBacterial ProteinsMice, Inbred C57BLDyspepsiaStomach DiseasesAnti-Ulcer AgentsAntigens, BacterialOmeprazoleChlamydophila