Final answer:
Food handlers can be symptomatic, which means they are sick with likely diarrhea or vomiting. Symptoms of foodborne illnesses caused by bacteria, viruses, or parasites include vomiting, fever, abdominal discomfort, and diarrhea. Good hygiene practices, such as washing hands, cooking food thoroughly, and refrigerating cooked food promptly, can help prevent foodborne illnesses.
Step-by-step explanation:
Food handlers can be symptomatic, which means they are sick with likely diarrhea or vomiting. Symptoms of foodborne illnesses caused by bacteria, viruses, or parasites include vomiting, fever, abdominal discomfort, and diarrhea. These symptoms can range in severity from mild to extremely debilitating. Foodborne illnesses can be prevented by practicing good hygiene, such as washing hands before preparing or eating food, cooking foods thoroughly, and refrigerating cooked food promptly.