Seventy percent of U.S. adults have had at least one shot of a Covid vaccine, according to data published Monday by the CDC, about a month behind President Joe Biden’s Fourth of July goal.
The 70% goal set by Biden in May is seen by federal health officials as a crucial step toward reaching so-called herd immunity — when enough people in a given community have antibodies against a specific disease.
While the milestone is a significant achievement for the nation, it should be seen as a floor, rather than a ceiling, especially as the highly contagious delta variant spreads, health experts say.
