'Toxic chemical fumes,' not oils, may be causing vaping illness, Mayo Clinic researchers find

'Toxic chemical fumes,' not oils, may be causing vaping illness, Mayo Clinic researchers find This is a developing news story. Please check back for updates: https://www.cnbc.com/2019/10/02/toxic-chemical-fumes-not-oils-may-be-causing-vaping-illness-mayo-clinic.html Follow @CNBCnow for breaking news and real-time market updates Unsubscribe Manage Newsletters Terms of Service Join the CNBC Panel   Digital Products Feedback Privacy Policy CNBC Events   © 2019 CNBC LLC. All rights reserved. A property of NBCUniversal. 900 Sylvan Avenue, Englewood Cliffs, NJ 07632 Data is a real-time snapshot *Data is delayed at least 15 minutes. Global Business and Financial News, Stock Quotes and Market Data and Analysis. Data also provided by THOMSON REUTERS