One in eight cancer cases worldwide is linked to preventable infections, study finds

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A study estimates that infections caused about 2.3 million new cancer cases worldwide in 2024, roughly one in eight cases. The burden falls mainly on low- and middle-income countries, and many of these infection-related cancers are considered preventable.

Infections caused by viruses, bacterium and parasites caused an estimated 2.3 million new cancer cases in 2024, with low- and middle-income countries bearing most of the burden.