The number of confirmed or suspected cases of vaping-related illnesses across the U.S. has risen to 805.<br />The health authorities there are advising people to stop using e-cigarettes and other vaping devices.<br /> As of Thursday,... the number of cases was up 52 percent from the previous week and included 10 deaths.<br />No single ingredient or additive has been implicated,... but most of the products in question are believed to be from the black market or include THC,... the psychoactive ingredient in marijuana. <br />
