The on-line survey of 941 respondents assessed subjective changes in respiratory symptoms in smokers who switched to vaping for at least two months. The results, published in the Journal of Addiction Research & Therapy, show that 66 per cent of respondents reported an improvement in respiratory symptoms, 29 per cent reported no change and 5 per cent reported worsening. Senior author Professor Peter Hajek from QMUL said: “There is no doubt that e-cigarettes are much safer than conventional cigarettes, but smokers are still led to believe that they’re dangerous. This misinformation includes a misreported study on rats that claimed that vaping may increase vulnerability to infections. These new findings from human vapers show that this is not the case.