The risk level of epidemic situation is divided into: high-risk areas, which generally means that there are more than 50 cases in COVID-19, and a cluster epidemic situation occurs within 14 days; In the medium-risk area, there were newly confirmed cases in COVID-19 14 days, and there were no more than 50 confirmed cases in COVID-19, and there were no clustered epidemics in 14 days; In low-risk areas, there are no confirmed cases in COVID-19, or there are no new confirmed cases in COVID-19 for 14 days. When an epidemic situation or a major health emergency occurs in the whole country, according to the actual situation and development trend of the current epidemic situation, the counties and cities are divided into low-risk, medium-risk and high-risk areas by comprehensively considering factors such as the number of newly added and accumulated confirmed cases. According to the severity, urgency and possible impact range of emergencies, the early warning levels are from low to high. The classification method and early warning color of early warning levels are as follows: level 4, general accident 1 ~ 2 deaths, and the early warning color is blue; Level 3, a major accident that may kill 3 ~ 9 people, and the warning color is yellow; Grade II, a major accident that may cause 10 ~ 29 deaths, and the warning color is orange; Grade I, a particularly serious accident that may cause more than 30 deaths, and the warning color is red.
Legal basis:
Law of People's Republic of China (PRC) on the Prevention and Control of Infectious Diseases
Article 43 When Class A and Class B infectious diseases break out and become epidemic, the local people's governments at or above the county level may, upon the decision of the people's government at the next higher level, declare part or all of their administrative areas as epidemic areas; The State Council can decide and publish epidemic areas across provinces, autonomous regions and municipalities directly under the Central Government.