Bowel cancer rates in adults under 50 has been doubling every decade for past 20 years, and will be the leading cause of cancer death in that age group by 2030. Childhood toxin exposure ‘may be factor’, with mutations more often found in younger patients’ tumours caused by toxin from E coli strains.

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3. Bowel cancer rates in adults under 50 has been doubling every decade for past 20 years, and will be the leading cause of cancer death in that age group by 2030. Childhood toxin exposure ‘may be factor’, with mutations more often found in younger patients’ tumours caused by toxin from E coli strains.