How do non-smokers develop lung cancer? Mouth bacteria may play role

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Even those who have never smoked a cigarette in their lives can develop lung cancer — and new research suggests that one mechanism behind this could be specific types of mouth bacteria. (Pixabay / pexels.com)

(Alexandra Mae Jones/ CTV News) — Even those who have never smoked a cigarette in their lives can develop lung cancer — and new research suggests that one mechanism behind this could be specific types of mouth bacteria.

A paper published Monday in the scientific journal Thorax which looked at non-smokers found that the chances of developing lung cancer might be linked to the type and amount of mouth bacteria a person has.

According to the researchers, non-smokers make up around one fourth of those who develop lung cancer, and known risk factors such as second-hand smoke and family history of cancer can’t fully explain this. (…)

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