Does this newly discovered bacterium cause chronic gastric diseases like Crohns?

Helicobacter pullorum — an emerging (underestimated) food safety risk

In 2005 two researchers were awarded the Nobel prize for busting the long-held belief that gastric ulcers (stomach ulcers) were caused by stress. They proved that ulcers were not caused by stress but by the actions of a bacterium that can survive inside human stomachs and grow to damage the stomach lining. The bacteria was Helicobacter pylori.