Many patients with vaping-related illnesses used THC

A new CDC report underscores the difficulty of pinpointing the exact cause of the current wave of vaping-related illnesses. Based on interviews with 86 confirmed and probable patients in Illinois and Wisconsin, officials reported that many vaped THC — one of the main components in marijuana — and used pre-packaged cartridges in their devices. Many of these were acquired from friends or dealers. All told, the people reported using 234 products across 87 different brands. The new report comes amid another spike in vaping-related illnesses, of which there are now 805 confirmed or probable cases across 46 states and the U.S. Virgin Islands. Twelve deaths have been tied to the illnesses. Washington on Friday became the latest state to ban flavored vaping products, following New York, Michigan, and Massachusetts, which has a four-month ban on all vaping products.