Legal analysis: First, the people who came to smoke and returned to smoke in areas where there were more than two local epidemic cases were comprehensively tested, and all the people who came to smoke and returned to smoke within 14 days were centralized isolated; Those who come to smoke and return to smoke in low-risk areas of key cities are required to hold a negative certificate of nucleic acid detection within 48 hours, and they will be tested again for 1 times after coming to smoke.

Second, strengthen the prevention and control of epidemic situation in encrypted traffic stations, especially airports and ports, strengthen the closed-loop or closed management of personnel in high-risk posts, and adjust the frequency of encrypted periodic nucleic acid detection by classification.

Third, traffic stations, agricultural markets, pharmacies, wholesale markets, shopping malls and supermarkets and other key places strictly implement control measures such as flow restriction, temperature measurement and code inspection, and strictly implement prevention and control measures such as booking, peak shifting, temperature measurement, code inspection, wearing masks and 1-meter safety isolation line when entering scenic spots and indoor public places.

Legal basis: Law of the People's Republic of China on the Prevention and Control of Infectious Diseases Article 4 Governments at all levels shall lead the prevention and control of infectious diseases, formulate plans for the prevention and control of infectious diseases, and organize their implementation.

article 5 the health administrative departments of governments at all levels shall exercise unified supervision and management over the prevention and control of infectious diseases.

health and epidemic prevention institutions at all levels shall undertake the monitoring and management of infectious diseases within their responsibilities according to the professional division of labor.

all kinds of medical and health institutions at all levels undertake the management of infectious diseases within their responsibilities, and accept the professional guidance of relevant health and epidemic prevention institutions.

the prevention and control of infectious diseases in the armed forces shall be handled in accordance with this law and the relevant provisions of the state, and shall be supervised and managed by the competent health department of the China People's Liberation Army.

article 11 medical and health institutions of all levels and types shall set up preventive health care organizations or personnel to undertake the prevention, control and epidemic management of infectious diseases in their own units and responsible areas.

cities, municipal districts and counties should set up infectious disease hospitals or designated hospitals to set up infectious disease clinics and wards.