Figure 1. COVID decreasing in all regions.

Average daily level of virus shed from infections into sewage is shown in millions/sample for the week ending on the date indicated.

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US and West virus levels for week ending October 26 based on 4- and 3-day averages, respectively.

Chart: Henry A. Choy, COVID and Vaccine UpdateSource: Derived with WastewaterSCAN dataCreated with Datawrapper