November 11, 2019 - 13:32 AMT
Vitamin E acetate may be to blame for U.S. vaping illness deaths

Vitamin E acetate, an additive sometimes used in THC and other vaping products, may be to blame for a U.S. outbreak of e-cigarette-related lung injuries that's linked to dozens of deaths, according to US Centers for Disease Control and Prevention officials, 7News reports.

Dr. Anne Schuchat, the principal deputy director of the CDC, said she would characterize it as a breakthrough in the agency's investigation, although more tests are necessary.

"These new findings are significant," Schuchat said during a press briefing on Friday. "We have a strong culprit."

There is still more work to do and the CDC said it is continuing to test for a wide range of chemicals.

"This does not rule out other possible ingredients," Schuchat said. "There may be more than one cause."

The CDC says its tests found vitamin E acetate in samples taken from 29 patients who were sick with vaping-related illness in 10 states. THC, or tetrahydrocannabinol, the primary psychoactive component of the cannabis plant, or its metabolites were detected in 23 of 28 patients. Nicotine metabolites were detected in 16 of 26 patient specimens.