As of November 5 39 people have died of the lung illness and 2051 cases are being probed. The chemical vitamin E acetate is used as an additive in the production of e-cigarette because it resembles THC oil said CDC which announced the breakthrough on Friday. THC or tetrahydrocannabinol is the psychoactive chemical in cannabis that gives users a high. Analyses of bronchoalveolar lavage (BAL) fluid samples (or samples of fluid collected from the lungs) of patients with e-cigarette or vaping product use associated lung injury identified vitamin E acetate an additive in some THC-containing products CDC said. The investigation