Giardia lambliaGiardiaGiardiasisTrophozoitesFecesCryptosporidiumCryptosporidium parvumProtozoan InfectionsProtozoan ProteinsCryptosporidiosisIntestinal Diseases, ParasiticDNA, ProtozoanAntigens, ProtozoanOocystsAntiprotozoal AgentsGiardiavirusSpores, ProtozoanEntamoeba histolyticaGenome, ProtozoanEntamoebaGerbillinaeGenes, ProtozoanTriose-Phosphate IsomeraseMetronidazoleParasitologyDientamoebaTrichomonas vaginalisRNA, ProtozoanPyruvate SynthaseNitroreductasesDiplomonadidaMolecular Sequence DataDiarrheaAntigenic VariationChild Day Care CentersDichlorophenAntibodies, ProtozoanEntamoebiasisDientamoebiasisParasite Egg CountWater SupplyFluorescent Antibody Technique, Direct