Table 3.

Using Percent Susceptible to Estimate Herd Immunity, $\delta =1.0\%$.

			Percent	${\mathcal{R}}_0$(t+30)	Percent
			Susceptible	with no	way back
	${\mathcal{R}}_0$	${\mathcal{R}}_{0t}$	t+30	outbreak	to normal
New York City (only)	2.7	0.8	73.5	1.4	30.3
New York City (plus)	2.6	0.4	77.5	1.3	41.5
Lombardy, Italy	2.5	0.9	77.5	1.3	23.4
New York	2.6	0.7	83.8	1.2	26.4
Madrid, Spain	2.6	0.2	81.5	1.2	43.2
Detroit	2.4	0.5	81.6	1.2	37.6
New Jersey	2.6	1.1	78.3	1.3	11.4
Stockholm, Sweden	2.6	1.2	78.3	1.3	7.2
Boston+Middlesex	2.1	0.7	84.9	1.2	32.9
Massachusetts	2.1	1.0	83.3	1.2	21.3
Paris, France	2.4	0.2	89.4	1.1	42.0
Philadelphia	2.5	0.9	87.2	1.1	17.0
Michigan	2.4	0.7	90.6	1.1	25.0
Spain	2.4	0.5	91.5	1.1	29.8
Chicago	2.2	0.9	87.0	1.1	18.0
District of Columbia	2.0	0.9	87.9	1.1	19.0
Italy	2.2	1.0	91.5	1.1	6.8
United Kingdom	2.4	1.0	91.0	1.1	10.0
France	2.2	1.1	91.9	1.1	-6.0
Illinois	2.0	0.9	91.2	1.1	15.3
Sweden	2.1	0.9	92.7	1.1	15.2
Pennsylvania	2.1	0.8	93.0	1.1	19.5
United States	2.0	0.9	94.7	1.1	13.1
New York excluding NYC	2.0	1.1	92.8	1.1	-2.3
Miami	1.8	0.7	96.3	1.0	31.0
U.S. excluding NYC	1.8	0.9	95.6	1.0	11.8
Ecuador	1.5	0.8	95.7	1.0	30.8
Los Angeles	1.6	1.0	96.2	1.0	5.4
Minnesota	1.5	0.8	96.7	1.0	28.7
Atlanta	1.8	1.5	86.2	1.2	-84.9
Iowa	1.4	0.9	96.1	1.0	27.2
Washington	1.6	0.3	98.0	1.0	56.3
Florida	1.6	0.9	98.0	1.0	15.3
Germany	1.7	0.2	98.6	1.0	55.8
California	1.5	1.0	97.5	1.0	-3.4
Brazil	1.3	1.1	95.0	1.1	-54.7
SF Bay Area	1.3	1.0	98.8	1.0	10.3
Mexico	1.3	1.1	97.3	1.0	-45.8
Norway	1.6	0.2	99.4	1.0	58.9