A second possible vaping-related death is under investigation in Oregon

Health officials in Oregon are investigating the recent death of a person who had severe respiratory illness after vaping. If confirmed, it would be the second such death reported in the country.

An Illinois resident died last month after developing the lung disease linked to using e-cigarettes.

The Oregon Health Authority reports the individual had used a vaping device purchased from a cannabis dispensary before becoming ill. The death occurred in July.

The person had developed similar symptoms to the 330 other people nationwide with confirmed or suspected cases of life-threatening vaping-related lung diseases. Doctors say patients report vaping either nicotine or THC, the high-inducing ingredient of marijuana, and then progressively getting sicker before arriving at the hospital coughing and with trouble breathing and chest pain.

Many also have experienced vomiting, diarrhea, fever, fatigue and weight loss.

“We don’t yet know the exact cause of these illnesses — whether they’re caused by contaminants, ingredients in the liquid or something else, such as the device itself,” Dr. Ann Thomas, a public health physician within the Oregon Health Authority, said in a statement.

Also Wednesday, North Dakota announced its first possible vaping-related lung illness, joining more than two dozen other states with cases.

According to an NBC News survey of state health departments, 330 such illnesses are either confirmed or under investigation nationwide — from California to the Midwest and the East Coast.