Electronic Cigarette Smoking and Perception among Youth: Delta, as expected, is now the dominant virus variant in the U.S., the C.D.C. estimates.

Wednesday, July 7, 2021

Delta, as expected, is now the dominant virus variant in the U.S., the C.D.C. estimates.

By BY EMILY ANTHES from NYT Health https://ift.tt/2UyxcEA

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