What are the signs and symptoms of Shigella infection in colitis?

Updated: Jan 04, 2019
  • Author: David A Piccoli, MD; Chief Editor: Carmen Cuffari, MD  more...
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Shigellae may cause asymptomatic infection, mild gastroenteritis, or bacillary dysentery. Bacillary dysentery begins suddenly with fever and abdominal pain, and diarrhea begins shortly thereafter. Stools are frequent (10-12/day, on average) and contain mucus and blood; tenesmus is common. Fever is noted, often in the range of 102-104°F (39-40°C). Shigella infection occasionally produces central nervous system (CNS) irritation and presents as seizure, even before other manifestations of the illness arise.

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