Analysis on the characteristics of spatio-temporal evolution and aggregation trend of early COVID-19 in mainland China

Abstract

To analyze the spatio-temporal aggregation of COVID-19 in mainland China within 20 days after the closure of Wuhan city, and provide a theoretical basis for formulating scientific prevention measures in similar major public health events in the future. Draw a distribution map of the cumulative number of COVID-19 by inverse distance weighted interpolation; analyze the spatio-temporal characteristics of the daily number of COVID-19 in mainland China by spatio-temporal autocorrelation analysis; use the spatio-temporal scanning statistics to detect the spatio-temporal clustering area of the daily number of new diagnosed cases. The cumulative number of diagnosed cases obeyed the characteristics of geographical proximity and network proximity to Hubei. Hubei and its neighboring provinces were most affected, and the impact in the eastern China was more dramatic than the impact in the western; the global spatio-temporal Moran’s I index showed an overall downward trend. Since the 10th day of the closure of Wuhan, the epidemic in China had been under effective control, and more provinces had shifted into low-incidence areas. The number of new diagnosed cases had gradually decreased, showing a random distribution in time and space (P< 0.1), and no clusters were formed. Conclusion: the spread of COVID-19 had obvious spatial-temporal aggregation. China’s experience shows that isolation city strategy can greatly contain the spread of the COVID-19 epidemic.

Spatial homogeneity pursuit of regression coefficients for hand, foot and mouth disease in Xinjiang Uygur Autonomous Region in 2018

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Inequality of public facilities between urban and rural areas and its driving factors in ten cities of China

“…However, grey facilities closely related to socioeconomic activities are equally important, providing residents with a series of services such as residence, transportation, education, medical treatment, entertainment, and public security 1 , 6 , 14 , 15 . Moreover, social equality of education and medical facilities is imminent under the circumstances of the current adjustment of population fertility driven by global population aging and the COVID-19 pandemic 16 , 17 . In recent years, China has implemented the development strategy of public service equalization and new urbanization 18 , 19 , highlighting the key issues of coordinated development of public facilities in urban and rural areas 19 .…”