EnterovirusEnterovirus InfectionsEnterovirus A, HumanEnterovirus B, HumanEnteroviruses, PorcineHand, Foot and Mouth DiseaseEnterovirus D, HumanEnterovirus, BovineEchovirus InfectionsHerpanginaMeningitis, AsepticPoliovirusMeningitis, ViralNervous System DiseasesCoxsackievirus InfectionsNeurologic ExaminationSewageVirus CultivationEchovirus 9RNA, ViralCapsid ProteinsRhinovirusPicornaviridaeEncephalitis, ViralPhylogenyPicornaviridae InfectionsWater MicrobiologyEchovirus 6, HumanCerebrospinal FluidParalysisVirologyMolecular Sequence Data5' Untranslated RegionsSerotypingGenome, ViralSequence Analysis, DNAPoliomyelitisWater PollutionVirusesDisease OutbreaksFecesParechovirusCentral Nervous System Viral DiseasesReverse Transcriptase Polymerase Chain ReactionConjunctivitis, Acute HemorrhagicAntibodies, ViralConjunctivitisCentral Nervous System DiseasesPolymerase Chain ReactionNeutralization TestsShellfishCytopathogenic Effect, ViralMyocarditisInfant, NewbornSensitivity and SpecificityMeningoencephalitisCentral Nervous System InfectionsFiltrationBrainAntigens, CD55Virus DiseasesHepatitis A virusCercopithecus aethiopsBase SequenceCapsidViral ProteinsEncephalomyelitisViral Structural ProteinsVirus ReplicationMolecular EpidemiologyViral Plaque AssayIon Exchange ResinsWaste Disposal, FluidBrain Diseases