Biden: Delta variant a 'serious concern'

US President Joe Biden said on 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,” NBC News reported.

“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, N.C.