id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-118119-it3q17rp	Odagaki, Takashi	Self-organized wavy infection curve of COVID-19	2020-10-16		.txt	text/plain	1782	133	73	Exploiting the SIQR model for COVID-19, I show that the wavy infection curve in Japan is the result of fluctuation of policy on isolation measure imposed by the government and obeyed by citizens, Assuming the infection coefficient be a 2-valued function of the number of infected individuals, I show that when the removal rate of infected individuals is between these two values, the wavy infection curve is self-organized. On the basis of the infection curve, I classify the outbreak of COVID-19 in each country into five types and show that these differences can be related to the relative magnitude of the transmission coefficient and the quarantine rate of infected individuals. The observed data for the outbreak of COVID-19 is the daily confirmed new cases ∆Q(t) ≡ qI, which is given by a convolution of the incubation period distribution function ψ(t) and the number of infecteds I(t).	./cache/cord-118119-it3q17rp.txt	./txt/cord-118119-it3q17rp.txt