Virus DiseasesDelayed DiagnosisVirusesPrenatal DiagnosisLymphocytic ChoriomeningitisEarly DiagnosisLymphocytic choriomeningitis virusSensitivity and SpecificityDiagnosisVirus ReplicationRetrospective StudiesRespiratory Tract InfectionsCD8-Positive T-LymphocytesTime FactorsArenaviridae InfectionsRNA Virus InfectionsHerpesviridae InfectionsMice, Inbred C57BLImmunity, InnateInterferon Type IAcute DiseaseVirus Physiological PhenomenaPolymerase Chain ReactionDiagnostic ErrorsPoly I-CBiopsyCell LineAntiviral AgentsAdenoviridae InfectionsInterferon-betaTomography, X-Ray ComputedAntibodies, ViralInterferonsProspective StudiesRNA, Double-StrandedMuromegalovirusInfant, NewbornHost-Pathogen InteractionsViral ProteinsPredictive Value of TestsNursing DiagnosisAntigens, ViralSendai virusMolecular Sequence DataOrthomyxoviridae InfectionsDiagnosis, Computer-AssistedRisk FactorsCytomegalovirus InfectionsRNA, ViralPregnancyHerpes SimplexRhinovirusCentral Nervous System Viral DiseasesReproducibility of ResultsVacciniaInfluenza A virusDNA, ViralTreatment OutcomeToll-Like Receptor 3Respirovirus InfectionsEnzyme-Linked Immunosorbent AssayCells, CulturedRhabdoviridae InfectionsInterferon Regulatory Factor-3Chronic DiseaseImmunologic MemoryFollow-Up StudiesPrognosisCytomegalovirusCoxsackievirus InfectionsInterferon-alphaFetal DiseasesPicornaviridae InfectionsPreimplantation DiagnosisHIV InfectionsMice, Inbred BALB CMagnetic Resonance ImagingFatal OutcomeParamyxoviridae InfectionsBacterial InfectionsMice, KnockoutInterferon-gammaPrevalenceEncephalitis, ViralIncidenceGene Expression Regulation, ViralCytokinesDNA Virus InfectionsCohort StudiesRNA VirusesHerpesvirus 1, HumanBase SequenceBiological MarkersCD4-Positive T-LymphocytesKiller Cells, NaturalDendritic CellsTumor Virus InfectionsEnterovirus InfectionsLymphocyte ActivationHIV-1