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Connie Hanzhang Jin

The summer travel season is kicking off this year with more uncertainty than any time in recent memory. The coronavirus pandemic has led millions of people to cancel vacation and travel plans. Airlines have lost billions of dollars in revenue, flying nearly empty planes and canceling tens of thousands of flights.

Three years ago, only about one in ten high school students reported having recently used e-cigarettes. But a study published this week in JAMA shows the proportion of students vaping nicotine has now grown to more than one in four.

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