The hundreds of vaping illnesses and over a dozen deaths are likely caused by toxic fumes from e-cigarettes, a first-of-its kind study suggests.
More than 800 Americans have suffered severe lung damage and, as of Wednesday, an additional death was reported in Alabama, bringing the national total to 17 vaping-related fatalities.
As illnesses and deaths have mounted, scientists have been scrambling for answers and have cautiously proposed a number of theories.