While the investigation into the outbreak is ongoing, the CDC recommends that people refrain from using e-cigarettes or vaping products, particularly those containing THC.
"Vaping is not safe for young people or pregnant women", Russell said in a press release Friday.
58 per cent reported using nicotine-containing products.
Mitch Zeller, director of FDA's Center for Tobacco Products, said the agency has tested 225 THC-containing products and found Vitamin E acetate - a cutting agent - in almost half of them.
Individuals should not modify or add any substances to e-cigarette or vaping products that are not intended by the manufacturer, including products purchased through retail establishments.
South Dakota health officials say the number of vaping-related illnesses reported in the state has almost doubled in the past two weeks. E-cigarettes are not FDA approved as a smoking cessation device.
Doctors studying lung tissue samples from people with vaping-related injuries have found that none of the cases had evidence of lipoid pneumonia, a rare diagnosis typically linked with people accidentally inhaling oils into their lungs.
The CDC on Thursday also identified 26 vaping-related deaths in 21 states. Federal data suggests THC plays a role in the outbreak.
States that have reported deaths: Alabama, California (3), Connecticut, Delaware, Florida, Georgia (2), Illinois, Indiana (3), Kansas (2), Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Jersey, New York, Oregon (2), Pennsylvania, Texas, Utah and Virginia.
There has also been a report of a suspected case in London, Ont., involving a teenager who was put on life support.
Before the vaping-related lung injury death, MI recently moved to ban flavored nicotine vapes, saying they appealed to children and barring retailers from selling them.
About 15 per cent of the lung injury cases in the US have been in those under 18 years old, Schuchat said.