Covid was vanishing last Memorial Day. Cases are five times higher now.
The United States is recording more than 100,000 infections a day — at least five times higher than this point last year — as it confronts the most transmissible versions of the virus yet. Immunity built up as a result of the record winter outbreak appears to provide little protection against the latest variants, new research shows. And public health authorities are bracing for Memorial Day gatherings to fuel another bump in cases, potentially seeding a summer surge.
Covid-weary Americans enter summer with little effort to contain a still-raging pandemic.