What should catering units do after food poisoning?
1. Send the poisoned person to the hospital for first aid \x0d\2. Make statistics on the poisoned personnel (including number, sex, age [adult or child], poisoning depth, poisoning time, hospital delivery) \x0d\3. Seal up the problem food \x0d\4. Stop business in time \x0d\5. Find the source of the poison.