Bacterial InfectionsGram-Negative Bacterial InfectionsListeriosisAnti-Bacterial AgentsGram-Positive Bacterial InfectionsImmunity, InnateCalcitoninFeverNeutrophilsBacteriaListeria monocytogenesMice, Inbred C57BLVirus DiseasesSepsisStaphylococcus aureusLipopolysaccharidesPneumonia, BacterialEscherichia coli InfectionsStaphylococcal InfectionsPseudomonas InfectionsBacterial Infections and MycosesPseudomonas aeruginosaHost-Pathogen InteractionsPhagocytosisDisease Models, AnimalSkin Diseases, BacterialMice, KnockoutAntimicrobial Cationic PeptidesStreptococcal InfectionsRespiratory Tract InfectionsGram-Positive BacteriaCitrobacter rodentiumGram-Negative BacteriaBacteremiaCytokinesAnti-Infective AgentsMacrophagesMice, Inbred BALB CMolecular Sequence DataOpportunistic InfectionsTime FactorsBacterial LoadToll-Like Receptor 2Leukocyte CountProtein PrecursorsToll-Like Receptor 4Disease SusceptibilityInfectionKlebsiella InfectionsLungFever of Unknown OriginPeritonitisEscherichia coliInflammationToll-Like ReceptorsEnterobacteriaceae InfectionsSignal TransductionEyelashesCells, CulturedStreptococcus pneumoniaeConjunctivitis, BacterialColony Count, MicrobialNeutropeniaPneumoniaHaemophilus InfectionsSalmonella Infections, AnimalUrinary Tract InfectionsMycosesSalmonella InfectionsPneumococcal InfectionsTumor Necrosis Factor-alphaProspective StudiesInterferon-gammaDrug Resistance, BacterialMicrobial Sensitivity TestsInfant, NewbornBiological MarkersBacterial ProteinsInterleukin-8Acute DiseaseSpleenImmunologic Deficiency SyndromesSalmonella typhimuriumKlebsiella pneumoniaeMeningitis, BacterialEye Infections, BacterialCell LineGene Expression RegulationMyeloid Differentiation Factor 88VirulenceMeningitisSpecies SpecificityMonocytesShock, SepticLeukocytesWound InfectionAmino Acid SequenceAcetylmuramyl-Alanyl-IsoglutamineEpithelial Cellsbeta-Defensins