Following a wave of vaping-related illnesses and deaths, top officials say the search for answers is only getting more difficult.
Public health officials are still at a loss to explain the cause of the severe lung illnesses, which have now reached 1,080 cases across 48 states and one US territory so far, up from 805 cases last week.
Retail giant Walmart said it would stop selling e-cigarettes in its US stores amid a growing crackdown on flavored vaping products to deter an ever-growing number of young users.
Los Angeles becomes the latest city to take steps to ban flavored e-cigarettes, after more than 500 people have been sickened in an outbreak of vaping-related illness in the United States.
India has 106 million adult smokers, second only to China in the world, making it a lucrative market for companies producing vaping products.
Some operators are cashing in on the CBD craze by substituting cheap and illegal synthetic marijuana for real CBD in vapes and edibles such as gummy bears, an investigation has found.
At least six people have died in the US recently after vaping in an outbreak that has sickened hundreds with severe pulmonary disease and left several teenagers in induced comas.
The study found that under most plausible scenarios, e-cigarettes and other vapour products have a generally positive public health impact.
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