Nearly 34 million doses of Covid-19 vaccine have been administered in the United States, according to data published Wednesday by the U.S. Centers for Disease Control and Prevention.
The CDC reported that 33,878,254 total doses were administered – approximately 61% of the 55,943,800 doses distributed. This is about 1.1 million more administered doses since yesterday.
The rate of vaccinations gradually increased over time.
At December 30, the average of seven days was about 255,000 shots per day.
The number rose to 359,000 on January 6; 710,000 on January 13; 892,000 on January 20; 1.16 million on January 27; and now on February 3 1.32 million.
At the current rate, every adult in the US can be fully vaccinated within about a year.
Assuming 75% of American adults need to be fully vaccinated to achieve herd immunity, the US could reach this threshold around Halloween.
Just over 8% of the U.S. population – more than 27 million people – have now received at least one dose of the vaccine, and about 6.4 million people have been fully vaccinated, CDC data show.
Note on the data: States have 72 hours to report vaccine data, so data published by the CDC may be delayed – and does not necessarily mean that all doses were given on the day it was reported.