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Salmonella infection (Salmonellosis) is a common bacterial disease. Salmonella bacteria live in the gut of animals and humans and can be found in the feces of an infected animal or person.

Salmonella is reportable to the Iowa Department of Public Health by Iowa Administrative Code 641 IAC 1.


There are many kinds of Salmonella bacteria, but only a few cause illnesses in people. Most of the illnesses caused by Salmonella are grouped as gastroenteritis (or sometimes incorrectly referred to as “stomach flu”).

Usually, people who get salmonellosis develop symptoms within 12-36 hours but can experience symptoms as early as 6 hours to as late as 3 days after ingestion of the bacteria.

Signs and symptoms of Salmonella infection generally last 4-7 days. Most people get better without treatment. In some cases, the diarrhea associated with a Salmonella infection can be dangerously dehydrating. In that event, see a doctor immediately.

Signs and symptoms may include:

  • Diarrhea
  • Headache
  • Fever
  • Nausea
  • Abdominal pain
  • Dehydration
  • Vomiting
  • Muscle pains
  • Bloody stools

Typhoid fever is a more severe disease caused by Salmonella.

Salmonella Fact Sheet