MICHAEL ABBEY / SCIENCE PHOTO LIBRARY MICHAEL ABBEY / SCIENCE PHOTO LIBRARY
Cholera bacteria. Light micrograph of Vibrio cholerae bacteria. These water-borne pathogens are the cause of the disease cholera in humans. They are transmitted to humans in contaminated water and food. The bacteria infect the small intestine and produce a toxin that causes diarrhoea, leading to severe dehydration which may be fatal if untreated. Outbreaks are associated with poor sanitary conditions and are often epidemic. Phase contrast. Magnification x800 at 6x9cm size.
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