Open. Optimize nucleic acid detection and inspection measures, and carry out nucleic acid detection for employees in high-risk positions and personnel in high-risk areas in accordance with relevant regulations. Others are willing to do a thorough inspection. According to the regulations, when entering the old-age care institutions, children's welfare institutions, kindergartens, primary and secondary schools, inpatient departments of medical institutions, restaurants, indoor fitness and closed places such as Internet cafes, bars, chess rooms, KTV, script killing, sauna bathing, etc., you must scan the code and check the 48-hour negative nucleic acid certificate. The staff of the above-mentioned relevant places must abide by its regulations. Adjust the requirements of nucleic acid detection for key populations, and important units, large enterprises and major events can determine prevention and control measures such as nucleic acid detection and inspection as needed.