Prognosis
Plummeting Cases in U.S. Show Pathway to Crushing Covid-19
- Infection immunity, vaccines, careful behavior driving decline
- More contagious variants, upcoming holidays pose threats
This article is for subscribers only.
Covid-19 cases and hospitalizations are dropping dramatically across the U.S., suggesting that measures to interrupt transmission are working, at least for now.
More than 27.7 million Americans have tested positive among at least 83 million believed to have been infected. A rising number -- 11.8% of the population -- has now received at least one dose of a vaccine. And data gathered from mobile phones suggest people are being more cautious in their day-to-day activities. If cases keep falling, it could buy time for the U.S. vaccination effort to take hold in the warm summer months ahead, potentially underpinning a long-sought economic recovery.