KEY POINTS
  • The delta variant now accounts for at least 20% of all new Covid cases in the U.S., according to the CDC.
  • The variant has a doubling rate of about two weeks, setting it on a path to become the dominant strain in the U.S. in a few weeks, White House chief medical advisor Dr. Anthony Fauci said Wednesday.
  • The president warned that Americans who are still unvaccinated are especially at risk.

President Joe Biden said Thursday that Covid deaths in the United States will continue to rise due to the spread of the "dangerous" delta variant, calling it a "serious concern."

"Six hundred thousand-plus Americans have died, and with this delta variant you know there's going to be others as well. You know it's going to happen. We've got to get young people vaccinated," Biden said at a community center in Raleigh, North Carolina.