Children can contract various foodborne illnesses caused by bacteria, viruses, and parasites. Some common illnesses include: - Salmonella: Often linked to undercooked eggs and poultry. - E. coli: Found in undercooked beef, unpasteurized milk, and contaminated water. - Norovirus: Common in contaminated water and foods like leafy greens. - Listeria: Found in unpasteurized dairy products and deli meats.