JOHANNESBURG - The World Health Organisation says urgent action is needed to control e-cigarettes and protect children, as well as non-smokers.
Health experts say vaping has not been shown to be effective for quitting smoking.
E-cigarettes with nicotine are highly addictive.
According to the WHO, 34 countries have banned the sale of e-cigarettes, 88 have no minimum age at which e-cigarettes can be bought, and 74 countries have no regulations in place.
eNCA spoke to Professor of Critical Care and Pulmonology at Wits University, Guy Richards.