Into what groups are food-borne illnesses not divided?

Food-borne illnesses are commonly categorized into three primary groups based on the type of organism responsible for the illness: bacterial infections, viral infections, and parasitic infections. Bacterial infections stem from the consumption of foods contaminated with harmful bacteria, viral infections arise from viruses present in contaminated food or water, and parasitic infections are caused by parasites that may be found in food sources.

Fungal infections, while they can contribute to food contamination and some health issues, are not typically classified as a separate group of food-borne illnesses in the standard classifications. Thus, while certain fungi may produce toxins that affect food safety (like molds), they do not form a primary category recognized in the same way as bacteria, viruses, or parasites. Therefore, the correct answer identifies the group that does not fit into the standard classification of food-borne illnesses.