关键词: 健康城市, 防疫空间单元, 应急隔离, 生命支持系统, 社区

Abstract: There are three key elements in the emergence of infectious diseases, namely, sources of infection, transmission routes, and susceptible populations. Early urban public health campaigns were committed to eliminating the source of infection by improving the urban physical environment. In recent years, the healthy city movement has focused on promoting the physical activity of residents to strengthen the health and wellbeing of susceptible people. Nevertheless, there is often a lack of effective training in cutting off the route of infectious diseases. In the present study, the current 'epidemic war' in China was analysed, and the 'isolation-treatmentrecovery' response measures in Chinese cities for epidemic prevention and control were summarised. In addition, the role of administrative and spatial units at the 'city-district-community' levels, as well as lessons learned to improve the healthy city movement, were discussed. It concludes that a better healthy city requires three perspectives of thinking: The first is how to effectively control the epidemic in a sudden outbreak. The second is adopting humanistic thinking in focusing on life support and the quality of life of residents in the context of the longterm impacts of the outbreak. The third is to strengthen spatial attribute thinking as part of the healthy city indicator system. Therefore, the idea of creating a healthy city epidemic prevention spatial unit system was proposed. At the city level, a 'city-district-community' multi-level linkage is needed to strengthen epidemic prevention capacity and establish a resources distribution mechanism. At the community level, on a spatial scale that satisfies basic isolation and epidemic prevention management requirements, it is necessary to establish a support system that serves basic human life to assure the health and wellbeing of residents during epidemic control.

Key words: healthy city, epidemic prevention spatial unit, emergency isolation, life support system; community