Food poisoning is a vague term. It includes illnesses resulting from ingestion of all foods containing nonbacterial or bacterial products. The nonbacterial products include poisons delivered from plants and animals, and inorganic chemical. Foods containing such products are, by convention, known as poisonous foods. The bacterial products include bacteria and their toxins. The poisoning resulting there from is, by convention, known as bacterial food poisoning. The illness is characterized by: (i) Simultaneous attack of many persons at the same time, (ii) History of ingestion of common food by all sufferers, and (iii) Similarity of signs and symptoms in a majority of cases.