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Conditions & Recovery · ScienceDaily Cancer · October 31, 2026

Scientists at Johns Hopkins have uncovered a crucial missing link between a common gut bacterium and colorectal cancer, solving a mystery that has puzzled researchers for nearly two decades. The bacterium, Bacteroides fragilis, produces a toxin that damages the colon’s protective lining, triggers chronic inflammation, and promotes tumor formation.
Originally published by ScienceDaily Cancer. We curate and add context; they did the reporting.
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