Bacterial InfectionsVirus DiseasesImmunity, InnateVirusesGram-Negative Bacterial InfectionsMice, Inbred C57BLListeriosisLymphocytic ChoriomeningitisRespiratory Tract InfectionsLymphocytic choriomeningitis virusAnti-Bacterial AgentsHost-Pathogen InteractionsCalcitoninGram-Positive Bacterial InfectionsFeverNeutrophilsCD8-Positive T-LymphocytesMice, KnockoutBacteriaListeria monocytogenesVirus ReplicationCell LineMice, Inbred BALB CCytokinesInterferon Type ICells, CulturedPneumonia, BacterialLipopolysaccharidesSepsisInterferon-betaStaphylococcus aureusHerpesviridae InfectionsPoly I-COrthomyxoviridae InfectionsInterferon-gammaSignal TransductionDisease SusceptibilityMolecular Sequence DataArenaviridae InfectionsAcute DiseaseMacrophagesRNA Virus InfectionsLungDisease Models, AnimalOpportunistic InfectionsPicornaviridae InfectionsInterferonsToll-Like ReceptorsVirus Physiological PhenomenaEscherichia coli InfectionsInfectionBacterial Infections and MycosesRhinovirusPseudomonas InfectionsAntiviral AgentsStaphylococcal InfectionsSpleenTime FactorsPhagocytosisImmunologic MemoryAntimicrobial Cationic PeptidesInflammationInterferon Regulatory Factor-3Influenza A virusPseudomonas aeruginosaPneumonia, ViralCytomegalovirus InfectionsAdenoviridae InfectionsDendritic CellsRNA, Double-StrandedLymphocyte ActivationSkin Diseases, BacterialFlow CytometryGene Expression RegulationMuromegalovirusLeukocyte CountViral ProteinsFever of Unknown OriginAntibodies, ViralSendai virusTumor Necrosis Factor-alphaCD4-Positive T-LymphocytesProtein PrecursorsGram-Positive BacteriaInterferon-alphaCitrobacter rodentiumKiller Cells, NaturalToll-Like Receptor 2Gram-Negative BacteriaStreptococcal InfectionsToll-Like Receptor 4BacteremiaReverse Transcriptase Polymerase Chain ReactionT-LymphocytesAmino Acid SequenceVacciniaAntigens, ViralPneumoniaToll-Like Receptor 3Central Nervous System Viral Diseases