The New York State Department of Health announced new findings from its study of illness linked to vaping and e-cigarettes.
According to the scientists, the culprit is vitamin E, which was contained in e-cigarettes and, as a result, in the bodies of smokers. On its own, it is not harmful when taken as a vitamin supplement, but when inhaled it can be dangerous.
Inhaling vitamin E can cause coughing, chest pain and shortness of breath.
To date, the number of deaths from illness caused by e-cigarettes has risen to 5.
The first death in the US from smoking e-cigarettes was registered in August in the state of Illinois.
In North Carolina, the attorney general filed lawsuits against eight manufacturers and sellers of vaping products to curb the spread of their products among teenagers.