(DETROIT) — A Michigan teenager was the recipient of what could be the first double lung transplant on a person whose lungs were severely damaged from vaping, health officials said Tuesday.

Doctors at Henry Ford Hospital in Detroit described to reporters Tuesday the procedure that saved the 17-year-old’s life and pleaded for the public to understand the dangers of vaping.

The teen was admitted in early September to a Detroit-area hospital with what appeared to be pneumonia. He was transferred to Children’s Hospital of Michigan in Detroit and taken Oct. 3 to Henry Ford Hospital where the transplant was performed Oct. 15. The double lung transplant is believed to be the first performed on a patient due to vaping.

Read more: A New Study Provides a Clue About Why People Are Getting Sick and Dying From Vaping

Doctors found an “enormous amount of inflammation and scarring” on the teen’s lungs, said Dr. Hassan Nemeh, surgical director of thoracic organ transplant at Henry Ford. “This is an evil I haven’t faced before. The damage that these vapes do to people’s lungs is irreversible. Please think of that — and tell your children to think of that.”

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