Cryptosporidium parvumCryptosporidiumCryptosporidiosisOocystsCoccidiaDNA, ProtozoanGiardiaFecesRNA, Ribosomal, 18SGiardiasisGiardia lambliaParasitologyCoccidiostatsParasite Egg CountRNA, ProtozoanProtozoan InfectionsWater SupplyParomomycinSporozoitesAntibodies, ProtozoanCattleDiarrheaProtozoan ProteinsCattle DiseasesApicomplexaWaterWater PurificationPropionibacterium acnesAntigens, ProtozoanDisinfectionPolymerase Chain ReactionFluorescent Antibody Technique, DirectGenes, ProtozoanAntiprotozoal AgentsImmunomagnetic SeparationAmebicidesIntestinal Diseases, ParasiticAntiparasitic AgentsGenome, ProtozoanHost-Parasite InteractionsWater MicrobiologyPolymorphism, Restriction Fragment LengthIMP DehydrogenaseWater PollutionFresh WaterIsosporaMolecular Sequence DataFood ParasitologySewageZoonosesChlorine CompoundsGenotype