Hand, Foot and Mouth DiseaseSeverity of Illness IndexAngiostrongylus cantonensisInfluenza, HumanInfluenza A Virus, H1N1 SubtypeSnake BitesEnterovirus A, HumanDenguePandemicsLeptospirosisDengue VirusDisease OutbreaksSevere DengueAcute DiseaseInfant, NewbornTreatment OutcomeHospitalizationRetrospective StudiesSeasonsPancreatitisChinaBrazilFatal OutcomeAntiviral AgentsIncidenceAdrenal Cortex HormonesPregnancyTime FactorsRisk FactorsProspective StudiesCase-Control StudiesPrevalenceFollow-Up StudiesAnti-Bacterial AgentsAge FactorsPrognosisPopulation SurveillanceAntibodies, ViralSensitivity and SpecificityMutationGenotypeMagnetic Resonance ImagingPredictive Value of TestsPostoperative ComplicationsTomography, X-Ray ComputedDisease Models, AnimalPhenotypeMolecular Sequence DataCohort Studies