THC vape cartridges are a popular product in Washington's legal marijuana shops. A new ban on flavored versions of marijuana and nicotine vaping products recently went into effect across the state and will remain in place at least four months. (Photo by Will Stone)

As states with legal weed embrace vaping bans, black-market risks linger

Health officials are still puzzling over why some who vape come down with a severe respiratory illness

Posted November 8, 2019 at 5:01am