In order to prepare for economic and social reopening and recovery, a pandemic management strategy based on risk levels of individual regions or counties is proposed in Table 1. The local classification of risk levels should be based on a comprehensive consideration of confirmed cases, deaths, population density, climate conditions, and other factors that would provide rationality for risk-level classification. The risk-based pandemic management strategy recommended in this study was based on the risk adjusted pandemic response established by the National Health Commission of China because the curve of cumulative cases has been flattened since March in China without any sign of rebound, which implies that this strategy is effective in controlling the COVID-19 pandemic. However, it should be pointed out that it is difficult to apply one strategy to all countries and regions because of the significant differences in politics, economy, culture, health, and social management among countries. Therefore, reopening plans and pandemic response in other countries such as the United States, Republic of Korea, Singapore, etc. were also referred to improve the applicability of the management strategy. This study emphasized that the risk level plays an important role when countries formulate local strategies in order to harmonize the COVID-19 pandemic response with economic and social recovery. Under this principle, the specific situation of different countries and regions must be considered to explore differentiated strategies.
Risk Level Required Conditions for Each Risk Level Risk Management Strategies Low COVID-19 cases continuously decreasing for 14 consecutive days. Adequate hospital capacity and medical resource supply. Prevent the spread of COVID-19 from external sources and resume work and normal life as soon as possible. Medium Growth of the number of new cases slows without evidence of a rebound. Prevent the spread of COVID-19 from both external and internal sources with precautions. Orderly and conditionally resume work and normal life. High No downward trajectory of COVID-19 cases reported within 14 days or rebound reported. Resumption is not recommended.
Table 1. Region-specific risk levels and management strategies during COVID-19 pandemic.