BacteriaProtozoan InfectionsProtozoan ProteinsGram-Negative BacteriaEukaryotaGram-Positive BacteriaCiliophoraDNA, ProtozoanBacteria, AnaerobicMolecular Sequence DataGenes, ProtozoanRNA, ProtozoanPhylogenyRNA, Ribosomal, 16SGenome, ProtozoanProtozoan Infections, AnimalBacterial ProteinsBacteria, AerobicDNA, BacterialDNA, RibosomalEscherichia coliWater MicrobiologySequence Analysis, DNAEntamoeba histolyticaGiardia lambliaAmino Acid SequenceBacterial Physiological PhenomenaTrypanosoma cruziLeishmaniaRumenToxoplasmaAlveolataSoil MicrobiologyTetrahymena pyriformisBase SequenceAnti-Bacterial AgentsGram-Negative Aerobic BacteriaAntiprotozoal AgentsGram-Negative Anaerobic BacteriaSeawaterTrypanosomaColony Count, MicrobialApicomplexaTrypanosoma brucei bruceiKinetoplastidaCulture MediaGenes, BacterialRNA, BacterialIntestinal Diseases, ParasiticSymbiosisTrypanosomatinaSulfur-Reducing BacteriaSpecies SpecificityTrichomonasGenes, rRNAAntigens, ProtozoanGene Expression Regulation, BacterialAnaerobiosisHartmannellaParasitesFecesFresh WaterGenome, BacterialCrithidiaLeishmania majorEntamoebaBacterial AdhesionBase CompositionFermentationTrichomonas vaginalisBiodegradation, EnvironmentalProtozoan VaccinesLegionella pneumophilaAcanthamoebaEnterobacteriaceaeCloning, MolecularSequence Homology, Amino AcidPseudomonasGiardiasisHost-Parasite InteractionsSequence AlignmentBiofilmsPolymerase Chain ReactionBacterial InfectionsLeishmania donovaniBacteriological TechniquesFungiCoccidiosisCryptosporidiumAcanthamoeba castellaniiMicrobial Sensitivity TestsHydrogen-Ion ConcentrationGammaproteobacteriaGeologic SedimentsVirulenceAmoebozoaMicrobial ViabilityAntibodies, ProtozoanCryptosporidium parvumSpores, Protozoan