When does a second COVID-19 surge end? Look at the data

Using data from all 50 U.S. states plus the District of Columbia, two mathematicians have developed a new method to analyze COVD-19 rates to help policymakers identify demonstrable turning points in infection surges.

from Health & Medicine News -- ScienceDaily https://www.sciencedaily.com/releases/2020/09/200922112312.htm