Several bacterial and viral agents may have a role in the aetiology of IBD. In theory, H. pylori infection could be involved in IBD by inducing alterations in gastric and/or intestinal permeability or by causing immunological derangements resulting in absorption of antigenic material and autoimmunity via various immunological pathways.
Helicobacter pylori (H. pylori) infection is one of the most common infectious diseases in humans.