Investing.com – Tobacco stocks were mixed amid new findings showing that exposure to nicotine in e-cigarette vapor had caused cancer in mice, and was likely “very harmful” to humans, according to New York University.
The study is the first to link vaping nicotine to cancer.
The amount of smoke the mice were exposed to was similar to what a human would inhale if they vaped regularly for about three to six years, estimated Moon-shong Tang, a professor at the NYU School of Medicine.
.Tobacco companies are under regulatory fire as lawmakers attempt to stop underage vaping, which has been linked to a series of deadly lung disease. Philip Morris (NYSE:PM) fell 1%, while Altria (NYSE:MO) was up 1.3%.
Altria Group (NYSE:MO) closed up 1.25%, while Philip Morris International (NYSE:PM) ended off 1.4%.