An infection with salmonella bacteria, commonly caused by contaminated food or water.
Salmonella is most common among children. People with compromised immune systems, such as older adults, babies, and people with AIDS, are more likely to have severe cases.
Symptoms include severe diarrhea, fever, chills, and abdominal pain.
Most people need only extra fluids and recover in under a week. Severe infections may require medical care including IV fluids and, sometimes, antibiotics.