Meningitis, BacterialMeningitisMeningitis, PneumococcalMeningitis, HaemophilusMeningitis, AsepticMeningitis, MeningococcalMeningitis, ViralCerebrospinal FluidMeningitis, FungalSpinal PunctureNeisseria meningitidisTuberculosis, MeningealMeningitis, CryptococcalStreptococcus pneumoniaeMeningitis, ListeriaMeningitis, Escherichia coliHaemophilus influenzae type bCeftriaxoneCerebrospinal Fluid ProteinsHaemophilus influenzaeNigerSubarachnoid SpaceAnti-Bacterial AgentsStreptococcal InfectionsLeukocytosisInfant, NewbornMeningesHaemophilus VaccinesCounterimmunoelectrophoresisEncephaloceleIntracranial PressureDexamethasoneAmpicillinCefotaximeMalawiTogoAcute DiseaseCommunity-Acquired InfectionsNervous System DiseasesStreptococcus agalactiaeProspective StudiesIncidenceSubdural EffusionRetrospective StudiesHearing TestsBacterial InfectionsMeningococcal InfectionsMeningoencephalitisAstheniaNeisseria meningitidis, Serogroup AEchovirus InfectionsCefuroximeStreptococcus suisBlood-Brain BarrierSeizuresCranial Nerve DiseasesHearing LossComaAdjuvants, PharmaceuticAlcoholicsPneumococcal InfectionsDiuretics, OsmoticConsciousness DisordersVietnamCephalosporinsDrug Therapy, CombinationHaemophilus InfectionsYemenTreatment OutcomeSerotypingAngiostrongylus cantonensisBacteriaRisk FactorsGeography, MedicalSensitivity and SpecificityBurkina FasoPopulation Surveillance