Vaccination rates fall off, imperiling Biden’s July Fourth goal

Plummeting vaccination rates have turned what officials hoped would be the “last mile” of the coronavirus immunization campaign into a marathon, threatening President Biden’s goal of getting shots to at least 70 percent of adults by July 4.

The United States is averaging fewer than 1 million shots per day, a decline of more than two-thirds from the peak of 3.4 million in April, according to The Washington Post’s seven-day analysis, even though all adults and children over age 12 are now eligible.

Small armies of health workers and volunteers often outnumber the...