CHICAGO: U.S. health officials on Thursday reported another 180 cases of vaping-related lung illnesses and announced plans to start testing aerosols produced by e-cigarettes and vaping products as they search for the source of the nationwide outbreak that has so far killed at least 33 people in 24 states.
Investigators primarily have been testing the liquids in vape products. Testing the aerosol produced when the liquids are heated might show whether that causes a chemical reaction that produces a toxic substance. A spokeswoman for the Wisconsin Department of Health Services said it is still not known whether vitamin E acetate is responsible for the lung injuries.
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