Nation Cases of vaping lung disease jump to 805 with 12 deaths, but cause remains a mystery, CDC says September 26, 2019 Doug Stanglin, USA TODAY Comments Off on Cases of vaping lung disease jump to 805 with 12 deaths, but cause remains a mystery, CDC says The number of vaping-related lung illnesses jumped to 805, up from 530 cases last week. The CDC says the cause is undetermined.