In this Friday, Oct. 4, 2019 file photo, a woman using a vaping device exhales a puff of smoke in Mayfield Heights, Ohio. (AP Photo / Tony Dejak, File)

NEW YORK (AP) — New government figures show more than 2,000 people have been diagnosed with vaping illnesses in the still-unsolved U.S. outbreak.

The Centers for Disease Control and Prevention on Thursday said 2,051 confirmed and probable cases have been reported. Illnesses have occurred in every state but Alaska. Forty people in 24 states have died, including three in Illinois, where public health officials said Thursday there have been 173 reported cases of illnesses.

The outbreak appears to have started in March. No single ingredient or vaping device has been linked to all the illnesses. Most who got sick said they vaped products containing THC, the high-inducing ingredient in marijuana.

Health officials urge people to avoid vaping, particularly products containing THC and purchased off the street.

The CDC said it tallied 39 deaths as of 5 p.m. Tuesday. Massachusetts reported an additional death Wednesday.

Additional reporting by WTTW News.

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