at that time. The travel policy of Zhangye City is that people who enter and leave Zhangye from low-risk areas in China can be released only when they show their health codes and green codes of travel cards, and those who enter and leave Zhangye from middle-high risk areas in China need to be isolated for 1.4 days on the basis of showing their health codes and green codes of travel cards and providing negative proof of nucleic acid testing. High-risk areas: Generally speaking, there are more than 51 confirmed cases in COVID-19, and there is a cluster epidemic within 14 days. Medium-risk areas: There will be newly confirmed cases within 14 days, and the cumulative number of confirmed cases in COVID-19 will not exceed 51; There are more than 51 confirmed cases, which have not occurred within 14 days. Aggregation epidemic.

low-risk areas: there are no confirmed cases in COVID-19, or there are no more confirmed cases in COVID-19 for 14 consecutive days. The health code is based on the actual real data, which can be generated by citizens or people who have returned to work through online declaration and background audit. As a electronic certificate where individuals pass in and out locally, the QR code can be declared once, which is universal in the whole city. The introduction of the health code aims to make the resumption of work more accurate, scientific and orderly. The substance of nucleic acid detection is the nucleic acid of virus. Nucleic acid detection is to find out whether there is nucleic acid of foreign invading virus in respiratory tract samples, blood or feces of patients, so as to determine whether they are infected by Covid-19. Therefore, once the test is positive for nucleic acid, it can prove that there is virus in the patient.

Quarantine is an epidemic prevention policy during the epidemic in COVID-19. The information of entry-related personnel is pushed to the epidemic prevention and control headquarters of the destination in time, and centralized quarantine and nucleic acid detection are implemented in 2114.

Precautions in low-risk areas

1. People in low-risk areas should obey the unified arrangements of communities (villages), achieve "personal protection and avoid aggregation", and cooperate with various prevention and control measures such as nucleic acid detection and health monitoring.

2. People in low-risk areas should do daily health monitoring and pay close attention to whether they have COVID-19-related symptoms such as fever, dry cough, fatigue, expectoration, sore throat, diarrhea, abnormal sense of smell (smell), nasal congestion, conjunctivitis and myalgia. If there is any abnormality, they should report it immediately, and they should not lie or conceal it.

3. People in low-risk areas should try their best to be "two points and one line", and do not attend gathering dinners or enter crowded public places.

Legal basis:

Law of the People's Republic of China on the Prevention and Control of Infectious Diseases

Article 12 All units and individuals within the territory of the People's Republic of China must accept the investigation, inspection, sample collection and isolation treatment of infectious diseases by disease prevention and control institutions and medical institutions, and provide relevant information truthfully. Disease prevention and control institutions and medical institutions shall not disclose relevant information and materials involving personal privacy.