Cholera

Summary

  • Epidemic secretory diarrhoeal disease caused by Vibrio cholerae, which releases a toxin that stimulates adenylate cyclase. Usually a disease of poverty but well described in returning travellers.
  • Classically, patients present passing large quantities (litres) of rice-water stools.
  • Basic laboratory tests are non-specific. Culture of the organism is definitive, and rapid dipstick tests are available.
  • Most patients will recover if the effects of the ensuing profound volume depletion are combated by oral and/or intravenous rehydration.
  • Antibiotics shorten duration and severity of disease, but rising rates of bacterial resistance are becoming problematic.
Last updated: May 16, 2013
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