CampylobacterBacteriaSpirillumBacteria, AerobicAerobiosisGram-Negative BacteriaRNA, Ribosomal, 16SAnaerobiosisSpirillaceaeBacteria, AnaerobicGallionellaceaeNiridazoleDNA, RibosomalPhylogenyHelicobacterDNA, BacterialMolecular Sequence DataOxygenNitrofuransBacterial ProteinsCulture MediaIncubatorsGram-Positive BacteriaCampylobacter fetusDimetridazoleCampylobacter jejuniSequence Analysis, DNASulfidesBacteriological TechniquesActinomycetaceaeRNA, BacterialWater MicrobiologyBase CompositionGene Expression Regulation, BacterialMetronidazoleOxidation-ReductionGenes, rRNAHelicobacter pyloriSeawaterUreaseBiofilmsEntamoeba histolyticaAnti-Bacterial AgentsHydrogenGiardia lambliaTrichomonas vaginalisGenes, BacterialBacterial Typing TechniquesOxidoreductases