One in six cancers worldwide is caused by preventable or treatable infections, a new study finds.
Infections cause about 2 million cancer cases a year, and 80 percent of those cases occur in less developed areas of the world, according to the study, which was published online May 8 in The Lancet Oncology. Of the 7.5 million cancer deaths worldwide in 2008, about 1.5 million were due to potentially preventable or treatable infections.
“Infections with certain viruses, bacteria and parasites are one of the biggest and most preventable causes of cancer worldwide,” lead authors Catherine de Martel and Martyn Plummer, from the International Agency for Research on Cancer in Lyon, France, said in a journal news release. “Application of existing public-health methods for infection prevention — such as vaccination, safer injection practice or antimicrobial treatments — could have a substantial effect on future burden of cancer worldwide.”