Streptococcus pneumoniaeStreptococcusNeutrophilsPneumococcal InfectionsKlebsiella pneumoniaeStreptococcus pyogenesNeutrophil InfiltrationStreptococcus mutansPneumonia, PneumococcalMycoplasma pneumoniaeChemotaxis, LeukocyteStreptococcal InfectionsStreptococcus agalactiaeBacterial ProteinsAnti-Bacterial AgentsMicrobial Sensitivity TestsPenicillin ResistanceNasopharynxStreptolysinsSerotypingMeningitis, PneumococcalCell MovementStreptococcus mitisBacterial CapsulesN-Formylmethionine Leucyl-PhenylalaninePneumococcal VaccinesDrug Resistance, BacterialStreptococcus oralisPenicillinsCell Migration InhibitionStreptococcus suisAnti-Infective AgentsErythromycinFluoroquinolonesChemotactic FactorsAntigens, CD18Streptococcus PhagesDNA, BacterialReceptors, Interleukin-8BMacrolidesInterleukin-8N-Acetylmuramoyl-L-alanine AmidaseDrug Resistance, MicrobialStreptococcus bovisApazoneHaemophilus influenzaeOtitis MediaMolecular Sequence DataAntibodies, BacterialKlebsiella InfectionsPneumonia, MycoplasmaKetolidesStreptococcus equiTransformation, BacterialCefotaximeCell Migration Assays, LeukocytePolysaccharides, BacterialCarrier StateGenes, BacterialPhagocytosisCell AdhesionMoraxella (Branhamella) catarrhalisLeukotriene B4LevofloxacinPenicillin-Binding ProteinsCeftriaxoneLungLeukocyte DisordersDNA Topoisomerase IVChemokine CXCL1Streptococcus sobrinusRespiratory Tract InfectionsCells, CulturedAminoacyltransferasesOfloxacinAntigens, BacterialPneumonia, BacterialNaphthyridinesChemokine CXCL2Disease Models, AnimalBacteremiaMeningitis, BacterialCephalosporinsGram-Positive BacteriaTransendothelial and Transepithelial MigrationMice, Inbred BALB CMice, KnockoutColony Count, MicrobialSkin Window TechniqueBacterial AdhesionVirulencePeritonitisPeroxidaseSepsisStreptococcal VaccinesInflammationChemotaxisVaccines, ConjugateStreptococcus gordoniiChlamydophila Infections