The 700-year-old Mexican Mummy With A Tummy AchePosted: 5 months ago by AutumnLotus Remnants of the bacterium that causes stomach ulcers, Helicobacter pylori, (H. pylori) have been discovered in gastric tissue from North American mummies. A study of human remains believed to predate Columbus' discovery of the New World has shown for the first time that H. pylori infection occurred in native populations. Comments: 4 Score: [-] 474 [+].