PBS News Hour

Delta variant on path to become dominant strain in the US

The U.S. is in a far better place this summer than many other countries witnessing new COVID cases. But the delta variant of the virus — now expected to become the dominant strain in the U.S. — is posing serious dangers in areas with low vaccination rates. Its spread in many countries worldwide is triggering shutdowns and fears of more deaths. William Brangham reports.

Delta variant on path to become dominant strain in the US

3m 33s

WETA Passport

Stream tens of thousands of hours of your PBS and local favorites with WETA Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.