Health officials are investigating an outbreak of severe pulmonary disease this summer that appears to be linked to the use of e-cigarettes, or vaping. One person has died, and many others have been hospitalized with a variety of symptoms in the days and weeks after they reported vaping. As of late August, 215 possible cases of e-cigarette–associated pulmonary disease have been reported in 25 states, according to the Centers for Disease Control and Prevention (CDC).

Unknown Cause

On Friday, the agency released a Health Advisory that provides information about e-cigarette products, updated details about the outbreak, and recommendations for clinicians, public health officials, and the public.

Health officials noted that respiratory (cough, shortness of breath, chest pain), gastrointestinal (nausea, vomiting, diarrhea), or nonspecific constitutional (fatigue, fever, or weight loss) symptoms have been occurring in otherwise healthy people, many in their teens or 20s, since June.

The exact cause of the outbreak is unknown, but reports point to a common factor: e-cigarette products were reportedly used by those affected. Many, but not all, patients reported that they’d used tetrahydrocannabinol (THC) and other cannabinoid products. The CDC, along with the Food and Drug Administration and local and state health departments, continues to investigate the cause of the outbreak.

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