Health Canada is reporting a second case of severe pulmonary disease related to vaping in Quebec.

The Centers for Disease Control and Prevention said 530 confirmed and probable cases have been reported in 38 states and one U.S. territory, up from 380 a week ago.

Canada's political party leaders were not nearly as blunt on the subject while asked on the campaign trail.

The federal agency is advising vaporizer users to watch out for symptoms of pulmonary illness, such as coughing, shortness of breath and chest pain, nausea, vomiting and diarrhea.