To prevent e cigarette, or vaping, product use associated lung injury (EVALI), people should not use THC containing e cigarette, or vaping products, particularly from informal sources. Data suggest e cigarette, or vaping, products that contain THC Radiologic and Pathologic Correlation in EVALI AJR Update: Characteristics of Patients in a National Outbreak of E cigarette, or Vaping, Product UseAssociated Lung Injuries United States, October 2019 MMWR E cigarette use or vaping associated lung injury (EVALI) GPnotebook