America’s Patchwork Pandemic Is Fraying Even Further

here was supposed to be a peak. But the stark turning point, when the number of daily COVID-19 cases in the U.S. finally crested and began descending sharply, never happened. Instead, America spent much of April on a disquieting plateau, with every day bringing about 30,000 new cases and about 2,000 new deaths. The graphs were more mesa than Matterhorn—flat-topped, not sharp-peaked. Only this month has the slope started gently heading downward.

This pattern exists because different states have experienced the coronavirus pandemic in very different ways. In the most severely pummeled places, like New York and New Jersey, COVID-19 is waning. In Texas and North Carolina, it is still taking off. In Oregon and South Carolina, it is holding steady. These trends average into a national plateau, but each state’s pattern is distinct. Currently, Hawaii’s looks like a child’s drawing of a mountain. Minnesota’s looks like the tip of a hockey stick. Maine’s looks like a (two-humped) camel. The U.S. is dealing with a patchwork pandemic.

The patchwork is not static. Next month’s hot spots will not be the...