Vitamin E acetate was detected in all 29 samples of patients with vaping related lung injuries. 23 of the patients self-reported vaping THC products. Nicotine related metabolites were found in 16 patients. Based on the findings, researchers report a clear association between vitamin E acetate and vaping lung injury, but say it is possible more compounds could also cause lung injury. The CDC recommends people stop using vaping products, specifically those containing THC or purchased on the black market.