Children under 5, older adults, and people with weak immune systems are particularly vulnerable to salmonella food poisoning.
Symptoms of salmonella, for most people, include diarrhea, fever, and abdominal cramps some 12 to 72 hours after eating contaminated food. After four to seven days, most people recover without treatment.
Some people develop severe diarrhea and need hospital care. Rarely, salmonella bacteria escape the gut and enter the blood, where they spread to other parts of the body. Such infections can be fatal if not treated promptly with antibiotics.