Legal analysis: 1. According to the current epidemic prevention and control policy in Beijing, local people in counties (cities, districts and banners) where China's high-risk areas are located are not allowed to enter Beijing for the time being, and will be released in due course after the whole county (city, district and banner) is transformed into a low-risk area. Locals in other counties (cities, districts and banners) of prefecture-level cities where high-risk areas are located are not allowed to enter Beijing unless necessary. If you need to go to Beijing, you should hold the negative certificate of nucleic acid test within 48 hours before boarding the plane, conduct health monitoring 14 days after arrival in Beijing, and conduct nucleic acid test on the day of arrival in Beijing and at least 7 days. 2. People who are still in the counties (cities, districts and banners) where high-risk areas are located, and those who have lived in the counties (cities, districts and banners) where high-risk areas are located 14 days and have not returned to Beijing, should have a relatively fixed residence, strictly abide by local epidemic prevention and control policies and regulations, pay attention to the changes in high-risk areas in China, and implement health management when necessary. 3. People from other areas outside the prefecture-level city where the middle and high-risk areas are located do not need to provide proof of nucleic acid testing when they enter Beijing.

Legal basis: Article 39 of the Law of People's Republic of China (PRC) on the Prevention and Control of Infectious Diseases. Medical institutions should take the following measures in time when they find Class A infectious diseases: (1) isolate patients and pathogen carriers, and determine the isolation period according to the results of medical examination; (two) for suspected patients, isolation treatment in designated places before diagnosis; (3) Carry out medical observation and take other necessary preventive measures at designated places for patients, pathogen carriers and close contacts of suspected patients in medical institutions. The public security organ may assist medical institutions to take compulsory isolation treatment measures if they refuse isolation treatment or leave isolation treatment without authorization before the expiration of isolation period. Medical institutions should take necessary treatment and control measures according to the condition when they find patients with Class B and Class C infectious diseases. Medical institutions must, in accordance with the provisions of laws and regulations, disinfect and dispose of places, articles and medical wastes contaminated by infectious disease pathogens in their own units.