Public health officials are “in desperate need of clarity” on electronic cigarettes to help guide policies, the nation’s newly appointed surgeon general said Tuesday.

“There’ve been theories and ideas around the fact that e-cigarettes may be helpful from a harm reduction perspective in helping people who are already on cigarettes (that) have had trouble quitting actually get off cigarettes,” said US surgeon general Dr Vivek Murthy. “If the data indeed bears that out, then I think we should absolutely embrace that and use e-cigarettes in targeted ways.”