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Delta variant becomes dominate COVID strain in U.S.

Name: Delta variant becomes dominate COVID strain in U.S.
Uploaded: 2021-07-07T18:36:01-0400
Duration: 2 min 15 s
Description: The Delta variant is taking hold as the new dominant strain of COVID-19. It's hitting the unvaccinated hard in America's heartland. Nancy Chen shares more.

The Delta variant is taking hold as the new dominant strain of COVID-19. It's hitting the unvaccinated hard in America's heartland. Nancy Chen shares more.