Botulism is

Botulism is a serious and potentially fatal disease caused by a potent neurotoxin produced by the bacterium Clostridium botulinum. It is specifically classified as a food-borne intoxication. Unlike a food-borne infection, where the illness is caused by the growth of pathogens within the body, food-borne intoxication occurs when a person ingests pre-formed toxins already present in the food.

The bacteria thrive in anaerobic (low oxygen) environments, such as improperly processed canned foods, where they produce the botulinum toxin. When consumed, this toxin interferes with nerve function, leading to muscle paralysis. While other forms like infant botulism involve intestinal colonization (infection), the standard clinical definition of food-borne botulism is an intoxication. It is not typically water-borne, as the toxin and bacteria require specific nutrient-rich, anaerobic conditions to produce the lethal toxin levels associated with the disease.