Short incubation period: usually a few minutes to several hours after eating.

Gastrointestinal symptoms: diarrhea, abdominal pain, some accompanied by vomiting and fever.

2, improve self-help awareness

If the above symptoms appear, you should doubt whether you have food poisoning, go to the hospital in time and report to the teacher.

3. Prevent food poisoning.

Develop good hygiene habits, wash your hands frequently, especially before and after meals, and wash your hands with disinfectant soap and hand sanitizer.

Do not eat cold and unclean food, do not eat spoiled leftovers, eat less, do not eat cold drinks, eat less and do not eat snacks.

Don't eat spicy food for a long time, don't eat wild fruits casually, and don't drink drinks, especially water, after eating fruits.

Don't rush to eat and drink after strenuous exercise.

Don't buy fried and smoked food at unlicensed stalls. Never go to unlicensed stall restaurants to buy food or eat.

Carefully buy packaged food, carefully check the packaging label, check the basic label, whether the address, telephone number, production date are clearly marked, whether it is qualified, and check the market access mark (QS).

Brief introduction of market access marks QS: In order to ensure people's food hygiene and safety, the General Administration of Quality Supervision, Inspection and Quarantine has implemented the food safety market access system nationwide since 2002. After the compulsory inspection is qualified, the factory food is labeled with market access signs, which is convenient for purchase. Since 2002, five kinds of food, such as wheat flour, rice, edible vegetable oil, soy sauce and vinegar, have been introduced. In the second half of 2003, the market access system was implemented for instant noodles, puffed food, canned food, cold drinks and other 10 foods.