An outbreak of a vaping-related illness in the United States has sickened hundreds and may be linked to the deaths of seven people, and an epidemic of youth vaping there has been called a "public health crisis." [...] in the UK, there doesn't appear to be an outbreak of vaping-related sickness. Neither has vaping's popularity soared among young people who never smoked. Rather, e-cigarettes have been embraced mostly as a way for adults to quit combustible cigarettes. Indeed, health authorities in the UK stand by their support for e-cigarettes as a cessation tool.