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Vaping-Related Lung Injuries Surge to 805 Cases, CDC Says

An employee exhales vapor while smoking an electric cigarette.
Photographer: Sergio Flores/Bloomberg

The number of vaping-related lung-injury cases has surged to 805, up from 530 reported last week, U.S. public-health officials said, as the mysterious epidemic continues to expand with no clear cause identified.

The number of deaths linked to the ailment also rose to 12, the U.S. Centers for Disease Control and Prevention said on Thursday, in 10 states.