A new study published in Nature links childhood exposure to E. coli bacteria, specifically the colibactin toxin, to a rise in early-onset colon cancer. Researchers found unique genetic changes in young patients' digestive tracts, indicating early-life exposure as a potential trigger. The most common sources of E. coli are undercooked meat, leafy greens, and unpasteurized dairy. This discovery suggests a need for preventative measures targeting childhood exposure, potentially impacting how cancer is understood and treated.

Prepared by Olivia Bennett and reviewed by editorial team.