After an epidemic occurs in a certain area, according to the risk assessment situation, if a high-risk area, such as a residence, is designated, it must be controlled for 7 days in accordance with the relevant requirements for high-risk area management. After the corresponding frequency in the early stage After nucleic acid testing, if there are no new infections for 7 consecutive days, and all personnel in the risk area complete a round of nucleic acid testing on the 7th day, and the results are negative, then the high-risk area can be reduced to a medium-risk area. After the area is reduced to a medium-risk area, it will be subject to control for three days in accordance with the relevant requirements of the medium-risk area. If there are no new infections for three consecutive days, it can be reduced to a low-risk area. The total control period before and after is ***10 days. If an epidemic occurs in a certain place, a medium-risk area is delineated based on risk assessment. After a corresponding frequency of nucleic acid tests in the early stage, if there are no new infections for 7 consecutive days, and all personnel in the risk area complete 1 If the results of secondary nucleic acid tests are all negative, then the medium-risk area can be reduced to a low-risk area. The control time before and after is ***7 days. If new infections occur during the control period, the control time may be recalculated based on the risk assessment results. The emergence of new infected people in medium- and high-risk areas indicates that under the existing detection methods, close links may not be found or new transmission chains may not be discovered, leaving loopholes and risks of spread. In addition, when an epidemic or suspected epidemic occurs in a certain area, especially in the early stages of the epidemic, when the source of infection is not yet clear and the risk of transmission cannot be determined, in order to prevent the spread of the epidemic as soon as possible, the relevant districts and counties will conduct comprehensive research and judgment based on As a result, temporary control measures were taken for relevant places. According to changes in the development of the epidemic situation, the temporary control scope will be dynamically adjusted and announced to the public at the same time. After all medium- and high-risk areas and temporary control areas are lifted, based on research and judgment, normalized prevention and control measures will be implemented in the corresponding areas. People with a 7-day history of staying in high-risk areas will be placed under centralized quarantine and medical observation for 7 days. For spillover personnel in high-risk areas, a 7-day centralized isolation medical observation will be carried out, and a nucleic acid test will be conducted on the 1st, 2nd, 3rd, 5th and 7th days of the centralized isolation medical observation (the management period starts from the time of leaving the risk area).

Legal basis:

Article 3 of the "Law of the People's Republic of China on the Prevention and Control of Infectious Diseases" The infectious diseases stipulated in this law are divided into Category A, Category B and Category C. Category A infectious diseases refer to: plague and cholera. Class B infectious diseases refer to: SARS, AIDS, viral hepatitis, poliomyelitis, human infection with highly pathogenic avian influenza, measles, epidemic hemorrhagic fever, rabies, Japanese encephalitis, dengue fever, Anthrax, bacterial and amoebic dysentery, tuberculosis, typhoid and paratyphoid, meningococcal meningitis, pertussis, diphtheria, neonatal tetanus, scarlet fever, brucellosis, gonorrhea, syphilis, leptospirosis , schistosomiasis, malaria. Category C infectious diseases refer to: influenza, mumps, rubella, acute hemorrhagic conjunctivitis, leprosy, epidemic and endemic typhus, kala-azar, hydatid disease, filariasis, except cholera, bacteria Infectious diarrheal diseases other than sexual and amoebic dysentery, typhoid fever and paratyphoid fever. The health administrative department of the State Council may decide to increase, reduce or adjust the categories of Class B and Class C infectious diseases based on the outbreak, prevalence and degree of harm of infectious diseases and announce them. "Emergency Response Law of the People's Republic of China"

Article 1

In order to prevent and reduce the occurrence of emergencies, control, mitigate and eliminate the causes of emergencies This law is formulated to prevent serious social harm, regulate emergency response activities, protect the safety of people's lives and property, and safeguard national security, public security, environmental security and social order.

Article 2

This Law shall apply to emergency response activities such as prevention and emergency preparedness, monitoring and early warning, emergency response and rescue, and subsequent recovery and reconstruction.

Article 3

For the purposes of this Law, emergencies refer to natural disasters and accidents that occur suddenly and cause or may cause serious social harm and require emergency response measures to be taken. Disasters, public health incidents and social security incidents.

According to factors such as the degree of social harm and scope of influence, natural disasters, accidents, disasters, and public health events are divided into four levels: particularly major, major, major, and general. If laws, administrative regulations or the State Council provide otherwise, such provisions shall prevail. The classification standards for emergencies shall be formulated by the State Council or departments determined by the State Council.

Article 1 of the "Frontier Health and Quarantine Law of the People's Republic of China" is formulated to prevent the introduction of infectious diseases from abroad or from the country, implement border health quarantine, and protect human health. Article 2 Border health and quarantine agencies shall be established at the ports and airports of the People's Republic of China that are open to international navigation, as well as at land borders and border river ports (hereinafter referred to as border ports), to implement infectious disease quarantine, surveillance and sanitation in accordance with the provisions of this Law. supervision. Article 3 The infectious diseases specified in this Law refer to quarantine infectious diseases and surveillance infectious diseases. Quarantine infectious diseases refer to plague, cholera, yellow fever and other infectious diseases determined and announced by the State Council. Monitoring of infectious diseases shall be determined and announced by the health administrative department of the State Council.

Article 25 of the "Law of the People's Republic of China on Public Security Administration Punishments" Whoever commits any of the following acts shall be detained for not less than five days but not more than ten days, and may also be fined not more than five hundred yuan; If the circumstances are relatively minor, the person shall be detained for not more than five days or fined not more than 500 yuan:

(1) Spreading rumors, falsely reporting dangers, epidemics, police situations, or deliberately disrupting public order by other means;

(2) Disrupting public order by releasing false explosive, toxic, radioactive, corrosive substances or infectious disease pathogens and other dangerous substances;

(3) Threatening to implement Arson fires, explosions, or dropping dangerous substances to disrupt public order.