Giardia lambliaGiardiaGiardiasisProtozoan InfectionsCryptosporidiumProtozoan ProteinsTrophozoitesDNA, ProtozoanFecesRNA, ProtozoanCryptosporidiosisEukaryotaGenes, ProtozoanCryptosporidium parvumGenome, ProtozoanOocystsEntamoeba histolyticaAntiprotozoal AgentsAntigens, ProtozoanCiliophoraEntamoebaParasitologySpores, ProtozoanProtozoan Infections, AnimalMolecular Sequence DataTrichomonas vaginalis