EYE OF SCIENCE / SCIENCE PHOTO LIBRARY EYE OF SCIENCE / SCIENCE PHOTO LIBRARY
Helicobacter pylori bacteria. Coloured scanning electron micrograph (SEM) of Helicobacter pylori bacteria on the surface of the human intestine. Formerly known as Campylobacter pyloridis, these are Gram-negative bacilli (rod-shaped) bacteria. Colonies of H. pylori occur on the stomach mucous membrane in people who suffer from gastritis, and these bacteria have been linked to stomach ulcer formation. H. pylori may also be a co-factor for gastric cancer as its presence increases the risk of stomach tumours. Magnification: x5560 when printed 10cm wide.
Model release not required. Property release not required.