The chart below shows the infection and positivity rate for Wayne County excluding Detroit.  (Note: The state does not publish positivity rates for local communities.)

The box in the top right of the graphic shows the most current daily rate. The bottom line chart shows the running seven-day average for the positivity rate.  This average is what is most commonly used in discussions about reopening schools.  To see the running average for any day, place the cursor on the line for a given data point on the graph and look for the “Moving average of percent positives.”