October is Liver Cancer Month
A major global study published in The Lancet Oncology reveals a striking statistic: 1 in 8 (12%) cancer cases worldwide in 2024 were linked to treatable or preventable infections.
The study, conducted by the International Agency for Research on Cancer (IARC), found that infection-related cancers accounted for 2.3 million new cases globally. Experts emphasise that infections are an under appreciated driver of cancer - and unlike many risk factors, these cancers are highly preventable and treatable through vaccination, screening, and timely medical care.
Hepatitis B: A Leading Cause of Preventable Liver Cancer
Among the infectious agents highlighted in the study, Hepatitis B virus (HBV) remains one of the largest global contributors to cancer:
360,000 global cancer cases in 2024 were directly linked to Hepatitis B, primarily resulting in liver cancer.
Chronic HBV infection causes persistent inflammation and cellular damage, significantly increasing the risk of normal liver cells mutating into cancer over time.
Asia and Sub-Saharan Africa bear a disproportionately heavy burden of HBV-related liver cancers, underscoring global health disparities in access to vaccination and care.
The researchers stress that effective tools already exist to stop HBV-related liver cancer - specifically infant and neonatal vaccination programs, widespread testing, and antiviral treatments that suppress the virus before liver damage progresses.
What This Means for New Zealand
Here in Aotearoa New Zealand, viral hepatitis, particularly chronic Hepatitis B, remains the leading cause of liver cancer, disproportionately impacting MÄori, Pasifika, and Asian communities.
Because chronic Hepatitis B often has no visible symptoms until advanced stages, many people are unaware they carry the virus. Regular monitoring, early detection, and proper clinical management can significantly reduce the risk of developing liver disease and liver cancer.
Get Screened: A simple blood test can confirm whether you have Hepatitis B.
Get Protected: Ensure infants and family members receive the Hepatitis B vaccine series.
Stay Monitored: If you live with Hepatitis B, routine health checks and monitoring are essential for long-term liver health.
š Read the full study summary on Newsweek: 1 in 8 Cancer Cases Worldwide Linked to Infections, Study Finds
