Ace the Illinois Food Service Exam 2025 – Serve Up Success Today!

The selection of diarrhea, vomiting, and fever as the most common symptoms of foodborne illness is correct. These symptoms are typically associated with the body's response to harmful pathogens such as bacteria, viruses, or parasites found in contaminated food. When such pathogens are ingested, they can disrupt the gastrointestinal system, leading to symptoms like diarrhea and vomiting as the body attempts to eliminate the harmful substances. Fever often accompanies these symptoms as an immune response to infection.

Other symptoms like headache and dizziness, while they can occur in some foodborne illnesses, are less common and more often associated with other medical conditions. Sneezing and coughing are primarily respiratory symptoms and are not indicative of foodborne illness, which primarily affects the digestive system. Back pain and joint stiffness are also not typical symptoms of foodborne illness; they may suggest other health issues unrelated to food contamination. Hence, the focus on gastrointestinal symptoms is crucial for identifying foodborne illnesses effectively.