We reporters covered the heck out of vaping lung illnesses starting in August. Once it became clear the culprit was THC and not nicotine, however, the news media seemed to lose interest, said former Food and Drug Administration chief Scott Gottlieb at a breakfast event I attended in early November. 

Indeed, a search on the news archive Nexis shows that the number of stories mentioning "vaping" and "lung illness" went from 953 in September to 584 in the first 30 days of October, a nearly 40% drop.