The U.S. is unlikely to achieve herd immunity by the end of the summer, President Joe Biden said in a Feb. 7 interview on CBS.
"The idea that this can be done and we can get to herd immunity much before the end of the summer is very difficult," he said.
The COVID-19 vaccine roll-out has been slower than anticipated and President Biden said his administration is looking at ways to speed up vaccine administration. He already used the Defense Production Act to ramp up manufacturing, according to The Washington Post.
There were 59.3 million COVID-19 vaccine doses delivered and 41.2 million doses administered in the U.S. as of Feb. 7, according to the CDC.