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Today is World Cancer Day and the World Health Organization says over a third of all cancer cases worldwide could be prevented.
A new study from the international agency looked at nine cancer-causing infections and dozens of preventable causes, including air pollution, ultraviolet radiation and physical inactivity.
Their analysis found an estimated 37 percent of all new cancer cases, which is over seven-million, were linked to preventable causes. It found tobacco to be the leading cause of preventable cancer at 15 percent of all new cases, followed by infections at ten percent.
