SHINSHU UNIVERSITY IMAGE: EFFECT OF STEROLS ON HELICOBACTER PYLORI GROWTH AND MORPHOLOGY CREDIT: COPYRIGHT © 2021, JUN NAKAYAMA, SHINSHU UNIVERSITY Helicobacter pylori (H. pylori), a gram-negative pathogen that has infected half of the world’s population is a Group I carcinogen according to the WHO. H. pylori resides in the gastric mucosa causing gastritis, ulcers, gastric...