The Pfizer-BioNTech coronaviruses vaccine will be given to eleven year-old Victoria Stout at a vaccine clinic in San Diego, California in November of 2021.
The number of states that confirmed their first cases of the omicron variant increased over the course of the week.
The largest single-day total since May, 2.2 million shots in arms, were reported to the CDC over a 24 hour period ending Thursday.
Roughly half of those shots were booster doses, White House Covid-19 data director Cyrus Shahpar wrote in a tweet Thursday, and nearly a third were first doses.
The U.S. health officials have been pushing vaccines through a public outreach campaign all year. The CDC told all adults on Monday that they should get an additional dose of Covid.
The CDC gave the strongest recommendation that adults should get an additional shot six months after their initial Pfizer or Moderna series, or two months after their first Johnson & Johnson shot.
Vaccination rates have been increasing but at a slower pace. According to CDC data, nearly 60 percent of Americans are fully vaccine free. It has been almost four months since that figure reached 50%. It took less than a month for the nation to go from 30% to 40%.
About 70% of Americans have received at least one shot, and 21% have received a booster shot.
In April, when the shots first became available, the seven-day average was 3.4 million shots per day, and in the late summer months, it reached an average of 1 million shots per day. Vaccinations were on the rise again heading into Thanksgiving and crossed the 1.5 million average shots per day mark in mid-November, many of which have been booster doses.
The variant had been found in five states. The number of Covid hospitalizations increased once again because the delta variant accounted for more than 99% of all new cases.
More than 100,000 patients were hospitalized with the delta wave in September, but the country is far from that peak. According to the Department of Health and Human Services data through Thursday, about 57,000 Americans are hospitalized with Covid, up 10% over the previous week and 22% from the country's most recent low point.
CNBC's Spencer Kimball contributed reporting.
