“One trend worth noting, however, is that very few of the cases involve only nicotine products; most of the afflicted users reported using THC exclusively or as

“One trend worth noting, however, is that very few of the cases involve only nicotine products; most of the afflicted users reported using THC exclusively or as well as nicotine.“ Looks like this is an issue mainly related to home-brew liquids containing THC. Edit: care to follow up on your downvotes and maybe post a clarifying comment? I just reported a passage of the article verbatim.