Nobel Prize for H. pylori Discovery The Nobel Assembly at the Karolinska Institute in Stockholm, Sweden awarded the 2005 Nobel Prize for Physiology or Medicine to Dr. Barry J. Marshall, 54, and Dr. J. Robin Warren, 68, for their discovery of the Helicobacter pylori (H. pylori) bacterium and its role in gastritis and peptic ulcer … Continue reading Nobel Prize for H. pylori Discovery