Poisoning caused by overeating or improper cooking. The incubation period is as long as 6-24 hours, as short as 1-2 hours and as short as 10 minutes. Most of them are mental symptoms and hallucinations, and there is "visual impairment in Lilliput". Like entering Lilliput, there are little people who are less than one foot tall everywhere, wearing red and green, lively and extremely naughty, constantly provoking, besieging and harassing patients. In severe cases, schizophrenia, dementia and stupor are more common. Generally, with the disappearance of toxicity, symptoms are relieved until they return to normal, and there are few sequelae. This bacterium can also be used to treat indigestion and abdominal distension.