Helicobacter pylori is the most prevalent bacterial
infection affecting mankind with approximately half
the world's population being infected. The majority of
the adverse clinical outcomes related to this infection
occur in developing countries, where the infection is
most prevalent1. H. pylori infection is the most
important aetiological factor in the development of
chronic gastritis and peptic ulcer disease. There is
very strong evidence that this infection increases the
risk of gastric cancer and gastric mucosa associated
lymphoid tissue lymphoma (MALT lymphoma)2.