COVID-19 cases in Missouri counties where wastewater was tested for virus variants

7-day average of COVID-19 cases per 100,000 residents

Cases based on positive PCR tests. Kansas City and Joplin are shown separately from the counties they straddle. St. Louis city has no county. Linn county not shown due to an outlier data point that skews the chart's scale.

Chart: Emily Barone Source: TIME analysis of data from University of Missouri and DHSS