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Shigella dysenteriae, bacterium, SEM
Coloured scanning electron micrograph (SEM) of Shigella dysenteriae, Gram-negative, enteric, facultatively anaerobic, rod prokaryote; causes bacterial dysentery. This species is most often found in water contaminated with human faeces. Magnification: x2,200 when shortest axis printed at 25 millimetres.
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