COVID-19病例与城市人口规模的标度律及其时间演化

许刚, 焦利民, 李新虎, 肖逸雄, 宫鹏, 龚健雅

Scaling law of COVID-19 cases and city size and its evolution over time

XU Gang, JIAO Limin, LI Xinhu, XIAO Yixiong, GONG Peng, GONG Jianya

图8 美国全境分阶段COVID-19累计确诊和死亡病例与人口规模标度指数的逐日时间变化

Fig. 8 Daily variations of scaling exponents between COVID-19 cases or deaths and the population during different waves of the COVID-19 epidemic in the United States