First, we must adhere to prevention. Wear a mask in a crowded closed place and when the contact distance with others is less than 1 m; Shop assistants, other people working in closed public places and medical personnel should wear masks. Reduce unnecessary party activities and reduce the number of people attending party activities; Pay attention to keep the social distance above 1 meter. Develop sanitary habits and lifestyles such as washing hands frequently and using chopsticks, and pay attention to shielding when coughing and sneezing. Strengthen ventilation and disinfection in working and living places.

Second, we must implement the "four early" measures. Early detection and report of cases and asymptomatic infected persons. Quickly carry out epidemiological investigation and implement early isolation and early treatment measures. According to laws and regulations, scientifically delimit the prevention and control area to the smallest units such as buildings, wards, residential quarters and natural village groups, and take decisive measures to cut off the transmission route and minimize the risk of infection.

Third, we must highlight key links. On the premise of implementing prevention and control measures, open public places in an orderly manner, strengthen community prevention and control, continue to do a good job in epidemic prevention and control of key institutions such as medical institutions, schools, pension institutions and welfare homes, and guide key groups such as the elderly and children to do personal protection. Fourth, we must strengthen support and guarantee. Accelerate the research and development of detection reagents and equipment, improve the ability of nucleic acid detection, expand the scope of detection, and do "should do everything possible" for key people and "be willing to do everything possible" for other people. It is necessary to play the role of big data and promote the implementation of mutual recognition of "health codes".