New York (AP) - The death toll for US e-cigarettes continues to rise. 47 people have died so far, said the US Department of Health CDC. The cause of the lung damage is still unclear, according to CDC. One of the possible causes was the discovery of a vitamin E-derived oil. In Germany and throughout Europe, no similar increase in lung damage has been reported so far. In Germany, the compositions of the active ingredients of e-cigarettes are more strictly regulated than in the US.