Walensky, during a White House press briefing, said hospitalizations also dropped to 8,300 per day (also a 15% decrease), and deaths remained at 1,476 per day, on average. Yesterday, according to the Johns Hopkins University tracker, the country confirmed 110,060 cases, including 2,718 deaths.

"Deaths remain substantially higher in states with low vaccination coverage," Walensky said, urging the 70 million Americans who have yet to get vaccinated against the novel coronavirus to do it as soon as possible.

The CDC COVID Data Tracker shows that 55.6% of Americans are fully vaccinated against COVID-19, 64.6% have received at least one dose of vaccine, and 2.2% of fully vaccinated Americans have received a booster dose.