The final measure is to measure the temperature of all people entering the dining room and provide hand sanitizer. This measure may generate a sum of money for the restaurant to buy thermometer and hand sanitizer, increasing the expenses of the restaurant. Secondly, in terms of procedures, take the temperature of all people. If you are at the peak of the meal, you will let customers line up at the door of the restaurant, take the temperature, so that customers need to wait for a period of time before entering the restaurant. If there are many people outside the restaurant, you will make customers impatient, make the restaurant lose customers, which also reduces the restaurant's revenue.