The guidance covers e-cigarettes and vapor products, as well as liquid nicotine and nicotine-containing e-liquids.

The curriculum will be a combination of in-person and online coursework.

"It needs a lot more work to show [that CBD] would be useful to treat infections in humans," said study lead author Mark Blaskovich, of The University of Queensland's Institute for Molecular Bioscience's Centre for Superbug Solutions in Brisbane, Australia. "It would be very dangerous to try to treat a serious infection with cannabidiol instead of one of the tried and tested antibiotics," Blaskovich told Live Science.

(CNN)An undercover operation in California found that half of tobacco and vape shops failed to check IDs for teens purchasing e-cigarettes and other nicotine products, despite a state lawraising the legal age for purchasing tobacco products to 21.