As with active cases, this week-over-week analysis of change for each day of the week suggests we are at or past the peak of the current bump, even though this one is lagged a week to allow for completeness in the table of cases by speciment collection date. Graphing is a great way to monitor this data because it allows you to eyeball the nature of the change in the daily change, or the true trend. Note how sharp the reversals look, but again this is largely influenced in regard to cases by the testing vagaries. But if you look at a few weeks span, you also see that the true reversals happen pretty quickly. Once people stop infecting other people as frequently, the number of active cases and the change in cases are rapid. And I hate to disappoint fans of the euphemistically named non-pharmaceutical interventions, but they make no difference in these curves; what does make a difference in shape and length appears to be vaccination. More excellent work from Dave Dixon.