This map is tracking the weekly COVID-19 growth factor by Michigan county.
Growth factor is the factor by which a quantity multiplies itself over time. The formula used is Saturday’s new cases divided by new cases on the previous Saturday.
- Special section: COVID-19 data
As of June 12, the counties with the largest weekly growth factors were Branch, Kalkaska, Oscoda, Mackinac and Ontonagon.
The growth factor of the state as a whole can be found here.
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