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Shigella: Facts and Details

What is shigellosis?

Shigellosis is a diarrheal infection caused by a group of bacteria called Shigella.

How common is shigellosis?

Every year, there are about 500,000 cases of shigellosis in the U.S. 

How do people become infected?

Shigellois is spread from person to person. Shigella bacteria spread easily; a small number of bacteria can make someone ill.

 Ways to become infected include:

What are the signs and symptoms of shigellosis?

Shigellosis symptoms include diarrhea (sometimes bloody), fever, stomach pain, and feeling the need to pass stool (poop) even when the bowels are empty.

How long can you spread shigellosis?

After exposure, symptoms usually appear in one to two days and last about seven days. People with shigellosis can spread Shigella for up to two weeks after diarrhea has ended.

Who is at risk for shigellosis?

Anyone can become infected with shigellosis, but young children, international travelers, and men who have sex with men are more likely to be infected. People with weakened immune systems are at risk for more serious disease.

How is shigellosis treated?

Most people with healthy immune systems will recover without treatment. Drinking plenty of fluids can also help prevent dehydration. Do not take antidiarrheal medicine. Severe cases of shigellosis can be treated with antibiotics, but Shigella bacteria can be resistant to antibiotics. Medical providers should test the bacteria to determine which antibiotics are likely to work, if treatment is needed.

How can you prevent shigellosis?

There is no vaccine for shigellosis. Prevent infection by the following methods:

 For more information:

Contact the Sedgwick County Division of Health Epidemiology Program at 316‐660‐7300.