Food poisoning refers to acute and subacute illnesses that occur after eating food contaminated with toxic or hazardous substances or after eating food containing toxic or hazardous substances.

The common foods that cause food poisoning are expired foods contaminated with bacteria or viruses, and some foods that are toxic to the human body, and food poisoning has the following characteristics:

First, it is a mass occurrence, as long as the consumption of a certain dose of this food will be onset of the disease.

Secondly, the onset of the disease has a certain incubation period, the incubation period of more than half an hour to a few days of the onset of the time.

Third, the common symptoms of food poisoning, mainly digestive symptoms, mostly nausea, vomiting, epigastric discomfort, abdominal pain, diarrhea, some patients will have chills, fever and dehydration related symptoms.

Chemical food poisoning

Mainly includes:

①Accidental consumption of food contaminated with toxic chemicals;

②Food poisoning caused by the addition of non-food-grade or fake or banned food additives, nutrient-fortified foods, as well as the excessive use of food additives;

③Thanks to the storage of food, resulting in chemical changes in nutrients. Nutrient chemical changes in the food, such as fat and oil rancidity caused by poisoning. Food poisoning caused by eating chemically poisoned food is chemical food poisoning.

Chemical food poisoning is characterized by the following: the onset of the disease is related to the time of eating and the amount of food consumed. Generally, the onset of illness shortly after eating, often in groups, patients have the same clinical manifestations. The chemical poisons concerned can be detected in samples of leftover food, vomit, blood and urine. The word "fast" should be emphasized when dealing with chemical food poisoning! Timely treatment is not only very important to save the patient's life, and at the same time to control the development of the situation, especially group poisoning and a moment not yet clear chemical poison is more important.