Spatial and Temporal Transmission Differences between SARS and COVID-19 and Analysis of Influence Factors

被引：0
|
作者：
Cui M. [1 ,2 ]
Yao X. [2 ,4 ]
Fang H. [2 ,5 ]
Zhang Y. [2 ,6 ]
Yang D. [1 ,2 ]
Pei T. [2 ,3 ]
机构：
[1] Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi
[2] University of Chinese Academy of Sciences, Beijing
[3] State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing
[4] Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen
[5] Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing
[6] Chinese Research Academy of Environment Sciences, Beijing
来源：
Journal of Geo-Information Science | 2021年 / 23卷 / 11期
基金：
中国国家自然科学基金;
关键词：
COVID-19; SARS; Space-time propagation differences; Space-time statistical method; Spatial propagation direction; Spatial propagation model; Spatial propagation space; Time series;
D O I：
10.12082/dqxxkx.2021.210133
中图分类号：
学科分类号：
摘要：
The outbreaks of SARS and COVID-19 have had a serious impact on public health, social economy and so on in China, in order to reveal the common law and difference characteristics of space-time transmission of respiratory infectious diseases and the reasons behind them, using space-time statistical methods, systematically analyzed and compared the difference characteristics of space-time transmission between SARS and COVID-19, and combined with the transmission characteristics of the virus itself and temperature, traffic and other factors to analyze the causes. The study shows that, ① SARS experiences two stages, the rising period-flat phase, and the COVID-19 experiences three stages, the rising period-sharp rise-slow up period. ② In the mode of spatial transmission, the transmission intensity and range of COVID-19 is greater than that of SARS, and the overall connectivity of COVID-19 is greater and the provinces are more closely related to the outbreak of the virus. Both SARS and COVID-19 transmission have obvious spatial aggregation characteristics. They are based on proximity propagation and long-range leaps, and SARS has a secondary communication center, and COVID-19 diffusion center has not been relocated. ③ In the direction of space communication, SARS is centered in Beijing, Hong Kong and Guangdong, the direction of spatial communication is stronger, and COVID-19 is only spread outwards with Hubei as the center. ④ In terms of spatial transmission speed, the spread time of the first case in each province of SARS is relatively large, and the spread time of the first case in each province of COVID-19 is roughly divided by Hu Huanyong Line, showing a phenomenon of "fast in the east and slow in the west", and the spread time span is relatively short. ⑤ R0 is the main reason for the difference between the spatial transmission range of SARS and COVID-19 and the speed of spatial transmission. The temperature suitability of SARS and COVID-19 viruses is different, but spatial aggregation transmission and adjacent area transmission are occurring in areas with similar temperatures. Besides the virus transmission capacity and temperature impact, traffic is the main reason affecting SARS and COVID-19 space long-range leap transmission, and the spatial transmission speed of both is negatively related to the density of the road network. 2021, Science Press. All right reserved.
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页码：1910 / 1923
页数：13
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