Eating meat, eggs or poultry that is raw or undercooked can lead to a type of food poisoning called salmonella. Salmonella symptoms develop 12 to 72 hours after digesting contaminated foods and may include nausea, pain in the abdomen, chills, fever, achy muscles, headache, bloody stools and diarrhea. Although symptoms generally clear within a week, salmonella can affect the bowels for months.