mobilized to help manage communities. Strict access control and grid-based management were exercised in communities, and human and material resources were channeled down to the community level to reinforce implementation of targeted measures. Task forces comprising both full-time and part-time community workers were set up, while officials at the sub-district/township and community/village levels, health workers of community medical facilities, and family doctors all performed their duties as a team. Through all these efforts, communities and villages were turned into strongholds, securing full implementation of response measures down to the lowest level.
To deal with the four categories of vulnerable people, a number of measures were taken in accordance with the law, such as tracing, registering, and visiting each individual, placing them under community management, and transferring them, if necessary, to designated medical facilities for quarantine or treatment as per due procedures. Community actions were taken to keep local areas in good condition and promote health education.
In Wuhan, rigorous 24-hour access control was enforced in all residential communities. No residents were allowed to leave and no non-residents allowed to access the community area other than for essential medical needs or epidemic control operations. Community workers were responsible for the purchase and delivery of daily necessities according to residents' needs. This approach was also applied in communities and villages in other parts of China, where all residents had to register and undergo temperature checking when leaving or entering the residential area or village.
Education programs were conducted to raise public awareness of the need for personal protection and enhance the sense of social responsibility. People observed self-quarantine at home and 14-day self-isolation after cross-region travel. They strictly followed personal protection measures such as wearing a mask when going out, maintaining proper social distancing, avoiding crowds, frequent handwashing, and regular ventilation. The tradition of the Patriotic Public Health Campaign which was initiated in the 1950s, with an emphasis on sanitation and personal hygiene, was also encouraged, along with a healthy, environment-friendly lifestyle .
A multi-level, category-specific, dynamic and targeted approach was adopted. China also applied a region-specific, multi-level approach to epidemic prevention and control. To better prevent and control the epidemic, each region at or above the county level was classified by risk level on the basis of a comprehensive evaluation of factors such as population and number of infections in a given period of time. There are three levels of risk: low, medium, and high. Regions could take measures according to the risk level, which was dynamic and adjusted in light of the evolving situation.
In response to Covid-19, a low-risk region was requested to remain
