id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-228049-1ttt1fgr	Cardoso, Ben-Hur Francisco	Urban Scaling of COVID-19 epidemics	2020-05-15		.txt	text/plain	2442	143	64	With this idea in mind, we present an analysis of a spreading-rate related measure of COVID-19 as a function of population density and population size for all US counties, as long as for Brazilian cities and German cities. Contrary to what is the common hypothesis in epidemics modeling, we observe a higher {em per-capita} contact rate for higher city's population density and population size. The case of United states can be explained by the linear scaling between their county's population size and population density, as show before in Fig. 1 . So, we expect that if we increase the geographical scale (counties → metropolitan areas → states), we reduce the dependence between contact rate and the population size. Our analysis and results give support to the validity of the population size driven contact rate for the COVID-19 pandemic.	./cache/cord-228049-1ttt1fgr.txt	./txt/cord-228049-1ttt1fgr.txt