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US vaping illness break 500, Missouri man is 8th death

An eighth death related to vaping has been reported as the number of vaping-related illnesses skyrocket, U.S. health officials said Thursday.

More than 500 people have been diagnosed with breathing illnesses related to e-cigarettes, up from 380 a week ago. No exact product or substance has been linked to the illnesses, although most patients reported vaping THC.

Two thirds of the cases involve 18- to 34-year-olds, and three-quarters involve men.

The man who died lived in Missouri and was in his mid-40s. He reportedly told his family in May that he had started vaping for pain, although it was not clear if he used THC.