The U.S. Centers for Disease Control and Prevention removed verbiage from its website this week suggesting that people refrain from all vaping products during its investigation into vaping-related lung injury.
The CDC previously urged people to consider refraining from the use of all e-cigarette or vaping products. Now the agency is focusing on THC-containing products.
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The new recommendation suggests people avoid THC-containing e-cigarette or vaping products, especially those from informal sources like friends and online dealers.
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The agency released a report Tuesday showing that patients with vaping lung injuries tend to get THC products from informal sources -- while nicotine products often come from commercial sources, like dispensaries and vape shops.
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Officials said adults using nicotine vaping products to replace cigarettes should not go back to smoking, but recommends they consider using FDA-approved ways of quitting instead.
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They also says people should not add Vitamin-E acetate to their e-cigarettes, stating that the thickener has been "strongly linked" to lung injury cases.