A state scientist says Michigan's rate of new COVID-19 cases has been dropping for more than 29 days. The state last week reported its lowest weekly new case total — 28,072 — since the end of October. The state reported a record total — 50,892 — during Nov. 15-21. Sarah Lyon-Callo, head of the epidemiology bureau, says social distancing will be important during the holiday season. Gov. Gretchen Whitmer's health department imposed a ban on indoor restaurant dining, in-person high school classes and other business restrictions. The dining ban remains in place through Jan. 15.