BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY
Light micrograph of a field of the bacterium Vibrio cholerae (gram negative), cause of cholera in humans. Cholera is an acute infection of the small intestines causing severe vomiting & diarrhoea leading to dehydration. Dehydration & the consequent imbalance of body fluids may result in rapid death. The bacterium is a water borne pathogen, transmitted to humans through drinking water contaminated by human or animal faeces. The outbreak of cholera is associated with poor sanitary conditions & often occurs in epidemics. The bacterium moves by means of a whiplike structure called a flagellum.
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