PBS News Hour

Dr. Fauci on the Delta variant, booster shots and masks

To understand more about the threat to Americans from the delta variant of the novel coronavirus, including the need for vaccinated individuals to wear masks or require booster vaccines, Judy Woodruff turns to Dr. Anthony Fauci. Fauci is the director of the National Institute of Allergy and Infectious Diseases at the National Institutes of Health, and the president's chief medical advisor.

Dr. Fauci on the Delta variant, booster shots and masks

8m 35s

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