What is a food infection?

A food infection is an illness caused by eating food that contains harmful bacteria, viruses, or parasites. These infectious agents can multiply in the food or produce toxins that cause people to get sick. The symptoms of foodborne illness can vary depending on the type of infection, but common symptoms include nausea, vomiting, diarrhea, and abdominal pain. Some people may also experience fever, headaches, dizziness, or fainting. Food infections can range in severity from mild to life-threatening, and treatment will depend on the cause of the infection.