FecesPhysical ExaminationDiarrheaDefecationGastroenteritisIntestinal Diseases, ParasiticSensitivity and SpecificityParasite Egg CountConstipationDiarrhea, InfantileGiardiasisParasitologyMicrosporidiosisPrevalenceEntamoebaCryptosporidiosisProspective StudiesMicrosporidaRotavirus InfectionsProtozoan InfectionsRotavirusClostridium difficileNeurologic ExaminationBlastocystis hominisPolymerase Chain ReactionTime FactorsMethyl GreenInfant, NewbornShigellaCatharticsBacteriological TechniquesCryptosporidiumGastrointestinal TransitClostridium InfectionsGiardia lambliaGynecological ExaminationEnterocolitis, PseudomembranousStrongyloides stercoralisDysentery, BacillaryTomography, X-Ray ComputedEntamoebiasisReproducibility of ResultsEducational MeasurementBlastocystis InfectionsCholeraDysentery, AmebicRetrospective StudiesLaxativesStrongyloidiasisPredictive Value of TestsNorovirusDientamoebaFollow-Up StudiesGiardiaRisk FactorsEvaluation Studies as TopicNutrition SurveysEscherichia coli InfectionsEnterocytozoonEntamoeba histolyticaHelminthiasisMagnetic Resonance ImagingHelminthsTreatment OutcomeCampylobacter InfectionsRectumPalpationCross-Sectional StudiesAscaris lumbricoidesBiopsyFatal OutcomeUnited StatesSpecimen HandlingMicroscopyAbdominal PainDisease OutbreaksAnthelminticsBacterial ToxinsAncylostomatoideaAcute DiseaseFecal IncontinenceCampylobacterAge FactorsQuestionnairesTrichurisParasitic DiseasesUltrasonographyMass ScreeningEnzyme-Linked Immunosorbent AssayColonoscopyMicroscopy, ElectronColonSenna ExtractSalmonellaAntidiarrhealsOccult BloodPregnancyEosine Yellowish-(YS)Culture MediaMolecular Sequence Data