That article is from 2015. The exotic pneumonias and other respiratory diseases that have sickened hundreds and killed 10s have been linked to electronic cigarettes only in the past few months. Tobacco, bad as it is, does not cause these catastrophic outcomes within just months of beginning habitual use. And evidence more recent than 2015 shows that electronic cigarettes are not very effective in weaning people away from tobacco. We now know, from longer term studies, that many of these people return to cigarettes. These products have not been around very long and 2015 is ancient history. I stand by my comment.