''Helicobacter mustelae'' can be found in the stomach and duodenum of almost all ferrets after weaning. If in sufficient numbers it can induce chronic, persistant gastritis, ulcer formation and in extreme circumstances gastric lymphoma can occur. | ''Helicobacter mustelae'' can be found in the stomach and duodenum of almost all ferrets after weaning. If in sufficient numbers it can induce chronic, persistant gastritis, ulcer formation and in extreme circumstances gastric lymphoma can occur. |