Data trends suggest Columbia’s mask ordinance is reversing the upward trend in infection rates in the city, the Columbia Missourian reports.
The positivity rate in Boone County increased sharply from 1.3% the week of June 5 to 15.7% in June 26. The positivity rate reached a peak of 16% the week of July 3.
After the mask mandate took effect in the week of July 10, the rate of positive cases fell to 6.2%. The mask ordinance requires everyone age 10 and older to wear masks in public and private settings when around people who are not from their household.
Although the positivity rate declined, it’s still higher than 5%, which is the rate that public health officials consider to be safe.
Currently, around 58% of all COVID-19 cases in Boone County have occurred in people under age 30.