Health authorities are trying to learn what is behind the vaping-related deaths and illnesses. The number of people in the US to have died from illnesses linked to e-cigarette use has risen to at least 19, health authorities say, while more than 1,000 others have suffered lung injuries probably linked to vaping. Health authorities are trying to determine if the outbreak is only happening now, or if earlier cases were misdiagnosed Only one case of lung injury has been reported outside the USA, making the outbreak more mysterious The US Centre for Disease Control said it looked like there might be a lot of "nasty things" in vaping products Officials have yet to identify the cause for the outbreak, which dates back to March, and they are pursuing multiple lines of investigation. A report by clinicians in North Carolina last month pointed to the inhalation of fatty substances from […]