Non-Helicobacter pylori Helicobacter species(NHPHs)are Helicobacter species other than Helicobacter pylo-ri(H.pylori).They are potential zoonotic pathogens that usually colonize the gastrointestinal tract of humans,dogs and cats,resulting in gastrointestinal diseases.Based on the site of colonization,NHPHs are classified as gastric or enterohepatic.NHPHs infecting dogs and cats may spread to humans through feces,saliva and gastric juices,causing human gastritis,gastric ulcer,and enteritis.This review summarizes recent progress of the etiology,epidemiology,and clinical and public health impli-cations of NHPHs in humans,dogs and cats.
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