Proteus is generally not pathogenic. The temperature is high in summer and autumn, and Proteus multiply in contaminated food. If it is not thoroughly heated before eating, the toxin produced by Proteus will lead to poisoning.
Poisoned food is mainly animal food, followed by bean products and cold salad. The onset season is mostly in summer and autumn. The cause of poisoning is that the contaminated food is not completely heated before eating. Proteus food poisoning is one of the common food poisoning in China.