LONDON — Over Memorial Day weekend, 135,000 people jammed the oval at the Indianapolis 500. Restaurants across the United States were thronged with customers as mask mandates were being discarded.
The formula, which gained the Biden administration’s blessing, was succinct: In essence, if you are fully vaccinated, you can do as you please.
But while the United States appears to be trying to close the curtain on the pandemic, across the ocean, in Britain and the European Union, it is quite a different story.
Despite plunging infection levels and a surging vaccine program, parts of Europe are maintaining limits on gatherings, reimposing curbs on travel and weighing local lockdowns.
Wellcome Sanger Institute, said of Delta. “It just means we have less certainty about what things will look like going forward.”
estimated on Friday that the Delta variant was roughly 60 percent more contagious than the earlier one from Britain. Health officials also warned that cases caused by the Delta variant might lead to a higher risk of hospitalization, though it was too early to say for certain.
The divergent strategies of European nations and the United States also reflect broader differences in how Western governments are thinking about their responsibility to unvaccinated people, scientists said.