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https://www.washingtonpost.com/video/national/health-science/how-a-wave-of-mysterious-illnesses-sparked-an-e-cig-crackdown-heres-what-you-need-to-know/2019/09/23/2e4373a7-5c0d-4d49-8ce2-69818ba0457a_video.html
https://www.washingtonpost.com/health/2019/09/07/what-we-know-about-mysterious-vaping-linked-illnesses-deaths/
The findings don’t rule out other possible compounds or ingredients that may be causing the lung injuries. But CDC tested for a wide range of substances that might be found in patients’ lung fluids, including plant oils and petroleum distillates, such as mineral oil. None of the others were detected.
[Searching for a killer: Inside the CDC's scramble to solve the mysterious vaping disease]
Some patients have said they vaped only nicotine products, even though urine tests have showed the presence of THC, authorities said. Doctors say patients may be hesitant to admit to using marijuana.
The FDA disclosed that it has launched a criminal investigation with the Drug Enforcement Administration. That is happening alongside the probe by the CDC into the cause of the illnesses. Federal officials are not pursuing individual vapers. But if the FDA determines “someone is manufacturing or distributing illicit, adulterated vaping products that caused illness and death for personal profit, we would consider that to be a criminal act,” said then-acting FDA commissioner Norman “Ned” Sharpless.