55.6 MB (1.5 MB compressed)
3720 x 5223 pixels
31.5 x 44.2 cm ⏐ 12.4 x 17.4 in (300dpi)
HEATHER DAVIES / SCIENCE PHOTO LIBRARY HEATHER DAVIES / SCIENCE PHOTO LIBRARY
Helicobacter pylori bacterium, coloured transmission electron micrograph (TEM). Formerly known as Campylobacter pyloridis, this Gram-negative spiral-shaped bacterium has flagella (hair-like strands), which are used for locomotion. It is found in the mucus lining of the stomach and is a common cause of gastritis (inflammation of the stomach lining) and stomach ulcers. Magnification: x14,000 when printed 10 centimetres tall.
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