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 Jan. 16, the counties with the largest weekly growth factors were Keweenaw, Alger, Lenawee, Leelanau and Manistee. The five with the smallest weekly growth factor during this period were Missaukee, Dickinson, Mackinac, Luce and Baraga.
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