LONDON SCHOOL OF HYGIEYNE & TROPICAL MEDI- CINE / SCIENCE PHOTO LIBRARY. LONDON SCHOOL OF HYGIEYNE & TROPICAL MEDI- CINE / SCIENCE PHOTO LIBRARY.
Scanning electron micrograph (SEM), tinted yellow, of the comma-shaped bacterium, Vibrio cholerae, the cause of cholera. The bacterium moves by means of a single terminal flagellum (seen here). The spread of cholera is associated with poor sanitation and water supplies contaminated by faeces from a patient. The bacteria lodge primarily in the small intestines causing inflammation, vomiting, diarrhoea and ultimately dehydration. Magnification: X 2,850 at 35mm size. Original is BW print B220/074.
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