As of Friday morning, flu shots have been administered in approximately 5.3 million doses in the United States, and another 4.7 million doses will be distributed by the end of the month.
The vaccine, which has been available in the U.S. since 2012, has been credited with averting a flu pandemic in some of the country’s poorest areas, including Chicago, Atlanta and New York City.
The CDC says about 1 million people have received the flu shot.
As of Monday, about 6.5 million doses had been administered nationwide.
It is unclear how many people have had the flu vaccine given to them by the vaccine manufacturers, but officials say there have been no reports of any deaths.
The flu vaccine is currently being distributed by pharmacies nationwide and by mail to some 2.5 billion people.
It will be available through pharmacies beginning Jan. 1 and will be made available to anyone who has received a flu shot in the past two weeks, according to the CDC.