NIBSC / SCIENCE PHOTO LIBRARY NIBSC / SCIENCE PHOTO LIBRARY
Helicobacter pylori bacterium. Coloured transmission electron micrograph (TEM) of a section through Helicobacter pylori, a cause of gastritis (stomach lining inflammation). H. pylori has numerous hair-like flagella (yellow), which it uses for propulsion. This Gram-negative, rod- shaped (bacillus) bacterium was formerly known as Campylobacter pyloridis. It is commonly found in the mucosal lining of the stomach in middle-aged people. Their presence is also associated with the formation of ulcers in the duodenum (part of the small intestine) and may also be involved in the formation of gastric cancers. Magnification: x12,500 at 6x7cm size.
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