President Joe Biden visited the National Institutes of Health complex and spoke regarding the U.S. vaccine supply and goals to roll out the vaccination and suggested that face covers may be necessary for the next year, according to Fox News.

Biden shared that even though he was 10 feet from Dr. Fauci and Dr. Francis Collins he would continue to wear his face cover.

Biden stated that wearing a mask for the next year could save a significant number of lives.

Health officials stressed that even with effective vaccines, the same safety protocols will be necessary until there is a clear herd of immunity.

Sharon Peacock, the director of the COVID-19 Genomics UK consortium, pointed out concerns that virus mutations will slow the process.

“Once we get on top of (the virus) or it mutates itself out of being virulent—causing disease—then we can stop worrying about it. But I think, looking in the future, we’re going to be doing this for years. We’re still going to be doing this 10 years down the line in my view,” she said.

Biden said the U.S. will have enough vaccinations to supply 300 million Americans.

“That’s just the floor,” Biden said. “Our end goal is beating COVID-19.”

More from Fox News:

The U.S. is on pace to exceed Biden’s goal of administering 100 million vaccine doses in his first 100 days in office, with more than 26 million shots delivered in his first three weeks.