OocystsCryptosporidium parvumCryptosporidiumCryptosporidiosisCoccidiaEimeriaCoccidiosisGiardiaIsosporaParasite Egg CountFecesParasitologyCyclosporaEucoccidiidaWater SupplyWaterDNA, ProtozoanWater PurificationEimeriidaeFiltrationFresh WaterCyclosporiasisEimeria tenellaWater PollutionGiardiasisDisinfectionPotassium DichromateToxoplasmaSporozoitesSpores, ProtozoanImmunomagnetic SeparationIsosporiasisFluorescent Antibody Technique, DirectAnophelesCattle DiseasesSewageRNA, Ribosomal, 18SApicomplexaMineral WatersToxoplasmosis, AnimalAntibodies, ProtozoanBenzophenoneidumCattleChlorine CompoundsRiversPlasmodium bergheiUnionidaePropidiumWater MicrobiologyAntigens, ProtozoanStaining and Labeling