Dr. Dana Menei Dermann, director of the Centers for Disease Control and prevention，said they have definitely narrowed it down to products that contain THC, which are related to most patients with lung injury. The specific substances have not yet been identified.
CDC and State Health Departments are Wrong to Inform the Public that Some Case Patients Used Only Nicotine E-Liquids https://t.co/n3aOIvP8Sa
— Michael Siegel (@mbsiegel) November 3, 2019
Tetrahydrocannabinol is the main psychoactive component of cannabis, and CDC said the products identified were obtained from the streets or other informal sources (such as friends, family or illegal dealers).
Specific chemicals that cause disease and death have not been identified.
But the outbreak has nothing to do with nicotine containing e-cigarettes that have been used in the United States for more than 10 years safely.
The first case appeared at the end of March this year, and, like all other cases, appears to be a sudden lung disease.
Due to the sudden outbreak of the disease, several states in the United States have banned the use of spices in electronic cigarettes and taken urgent action.
The British Department of public health is more concerned that the over reaction to this event seen in the United States and other countries may aggravate people’s misunderstanding of the relative safety of nicotine e-cigarettes, prevent smokers from using e-cigarettes, and may drive smokers who have switched to e-cigarettes back to smoking, which will undoubtedly endanger life and is a real risk.