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. 2020 Sep 22;30(9):091102. doi: 10.1063/5.0024204

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© 2020 Author(s)

Published under license by AIP Publishing.

1054-1500/2020/30(9)/091102/9/$30.00

All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

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FIG. 4. — Smoothed time series and identified turning points for various states: (a) Idaho, (b) Iowa, (c) Minnesota, (d) Connecticut, (e) Arkansas, and (f) Massachusetts. Arkansas is in its first surge; Idaho, Iowa and Minnesota are experiencing second surges more severe than the first; Connecticut and Massachusetts are experiencing new increases in cases with peak ratios greater than 0.2, as defined in Sec. II. Thus, they are determined to be experiencing second surges.