From the abstract of the quoted paper:<p><i>Our data confirm that smoking cigarettes causes suppression of several key immune genes in the nasal mucosa. E-cig users showed the same changes in immune genes as cigarette smokers. However, e-cig users also demonstrated suppression of several additional immune genes, suggesting even broader suppressive effects on respiratory mucosal immune responses as compared to cigarette smokers.</i><p>Looks to me that <i>E-cigs shut down hundreds of immune system genes—regular cigs don’t</i> is misleading.