GIS-based characteristics of Infectious disease transmission: A comparison of COVID-19 and SARS in Guangzhou, China

There are differences in the temporal and spatial characteristics of the spread of severe respiratory syndrome (SARS) and new coronavirus pneumonia (COVID-19). In order to explore the difference, this study selected Guangzhou as the research object. Based on the information of confirmed cases of new coronavirus pneumonia (COVID-19) given by the Guangzhou Municipal Health Commission, GIS software was used to analyze the differences in temporal and spatial characteristics of transmission. The study found that: Compared with SARS, COVID-19 spreads more widely and is more contagious. The spread of COVID-19 is characterized by a wide range and dispersion. Compared with SARS, the infection situation of medical staff in the prevention and control of the epidemic has been greatly improved. This study is helpful to grasp the characteristics of the time and space transmission of infectious diseases in metroetpolitan areas and provide effective early warning for emergency decision-making and prevention and control of the epidemic.