VAPING: ‘Toxic chemical fumes,’ not oils, may be causing vaping illness, Mayo Clinic researchers find.

Researchers from the Mayo Clinic examined lung biopsies from 17 patients suspected of having a perplexing vaping illness that’s sickened more than 805 people since April. Doctors have previously said it resembled a rare form of pneumonia caused by the accumulation of fatty substances known as lipids.

However, none of the cases examined by the Mayo Clinic researchers showed any evidence of lipoid pneumonia, according to the study published Wednesday in the New England Journal of Medicine. It’s the first formal study examining tissue samples of patients who have fallen ill from vaping.

“It seems to be some kind of direct chemical injury, similar to what one might see with exposures to toxic chemical fumes, poisonous gases and toxic agents,” said Dr. Brandon Larsen, a surgical pathologist at Mayo Clinic Arizona and a lead author of the study. “Based on what we have seen in our study, we suspect that most cases involve chemical contaminants, toxic byproducts or other noxious agents within vape liquids.”

Vape black market stuff and you take your chances. Government overreaction will push more vapers into the black market.