Let say you don't smoke, you don't vape, you don't do anything beside waking up, eat your breakfast, go to work or whatever else you wanna do (we can do a lot of stuff), eat lunch (or not), go back home eat dinner, watch Tv or post on ECF (you're not suppose to vape though, in my premise but it doesn't really matter) ... What ever your daily life pattern is, if I apply the gene expression analysis as we know them, and as these investigators have been doing for the past 10-20 years (scrapping your nose, extract RNA, and put the template onto that gene expression kit (it's actually easier than twisting a good coil)), I know that I'll find out that thousands your "Immune genes" (what ever that vague terminology means), will go up and down throughout the day... That's just means that we're healthy! One thing that these so called scientists/researchers, or those who have no clue and dare to write about it can not do, is to tell what the hell they are specifically talking about... I've been looking into it to narrow the scientific purpose, and certainly pull out some outcomes beyond what most won't think about... I twisted it in so many directions, but no platform to intelligibly argue or debate on... so frustrating... I've been ...... off over the emptiness of the original claim, sorry folks. What we can tell them though is that we feel good since we stop smoking, we don't get any more infections than anyone else (actually maybe less). So now, what we can ask is show your data (if you have any) and let see what our people can say about them. We got qualified vaper folks, in every field including biological science or immunology that would evaluate your data (if you have any that you can dare to expose) with no bias to tell you what they worth. So far, I can tell you Professor (I let you guess that name), you have shown no substance to support your claim. Shame on you!