Amid all of this, one particular difference stands out between the American and European approaches. Many states were happy to reopen after simply “bending the curve” — that is, slowing upward growth and ensuring spare hospital capacity. These states went on to expand economic activity at an elevated plateau with lots of ongoing transmissions. In contrast, European countries mostly waited to reopen until they crushed the curve or reached its far slope, with substantially lower incidence or dramatic reductions in the viral spread. It’s not the only explanation for a growing gap, but it’s a compelling one.
Italy is something of an exception, having opened with a comparatively high case count. However, the country was recovering from a particularly large and concentrated outbreak, and its incidence was on a steep downward trajectory. Its average daily count was below 20 cases per million within a week of its initial limited opening, a metric none of the most troubled states have managed since early April. More fromChina Should Join Trade Deal the U.S. AbandonedChina’s Rise Heralds Return of the Domino TheoryThe Stock-Market Recovery Makes a Lot of SenseCoronavirus Mission Not Accomplished
So why is low incidence so crucial to successful reopening? It’s simple math. More virus circulating in a community means more opportunities for it to spread. It makes every precaution individuals and officials take a bit less effective, and every activity riskier. This doesn’t necessarily translate to immediate outbreaks, as people came out of lockdown quite cautiously. But as activity expands to include things such as indoor service at bars, a high base level of infection becomes increasingly likely to cause problems.
Meanwhile, Mike Pence has canceled his rallies in Texas and Arizona this week. Big of him.