The number of confirmed or suspected cases of vaping-related illnesses has risen to 805 in 46 states and one U.S. territory,... as U.S. health authorities advise people to stop using e-cigarettes and other vaping devices.<br /> According to the Centers for Disease Control and Prevention on Thursday,... the number of cases was up 52-percent from the past week.<br />The latest numbers include 10 deaths.<br />While no single ingredient or additive has been implicated,... most of the problematic products are believed to be black-market products or those that include THC,... the psychoactive ingredient in marijuana.<br />A large percentage of the illnesses reported have been in young people. <br />