Shigella dysenteriae bacteria

Shigella dysenteriae bacteria

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Credit: DR KARI LOUNATMAA/SCIENCE PHOTO LIBRARY

Caption: Shigella dysenteriae bacteria. Coloured scanning electron micrograph (SEM) of Shigella dysenteriae bacteria, the cause of dysentery in humans. Several of the rod-shaped, non-motile, Gram- negative bacterial cells can be seen. Dysentery affects mainly the large intestine and varies in severity from a mild attack of diarrhoea to an acute infection. Until the introduction of sulphonamide drugs in the 1930s it was a world- wide killer disease. It still affects the young, elderly and malnourished. Infection is spread by flies, direct contact, and water contaminated by faeces containing the bacillus. Magnification: x14,600 at 6x7cm size. x50,000 at 8x10"

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Keywords: bacteria, bacteria causing, bacterial, bacteriology, bacterium, dysentery, food poisoning, gram negative bacteria, micro-organisms, microbe, microbes, microbiology, scanning electron micrograph, sem, shigella, shigella dysenteriae, type

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