Study: Infections Caused 2.3 Million Cancer Cases Worldwide in 2024
A study published in The Lancet Oncology estimates that 2.3 million new cancer cases globally in 2024, roughly one in eight, were caused by infections. H. pylori accounted for the largest share at 760,000 cases, followed by HPV with 750,000, then HBV, EBV and HCV. More than three-quarters of these infection-linked cancers occurred in low- and middle-income countries, with Eastern Asia alone responsible for 990,000 cases, or 42% of the global total.
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The findings suggest a large share of cancer worldwide could be prevented through vaccination, screening and treatment of infections like H. pylori and HPV rather than solely through traditional cancer therapies. Dr. David Greenberg argues this points to a need to break down barriers between infectious disease and oncology fields, though translating that into policy change in lower-income regions, where the burden is concentrated, would require significant investment in healthcare infrastructure. The regional disparities highlighted also suggest that global cancer prevention strategies may need to prioritize infection control differently depending on local disease patterns.
- 2.3 million cancer cases globally in 2024 (12% of total) were linked to infections, per The Lancet Oncology.
- H. pylori and HPV were the top contributors, causing 760,000 and 750,000 cases respectively.
- Over three-quarters of these cases occurred in low- and middle-income countries, with Eastern Asia bearing 42% of the global burden.
Source: science.slashdot.org, 2026-10-03
Published there as: “1 In 8 Cancer Cases Worldwide Are Due to Infections”
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