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Story summary
- A virus in Bacteroides fragilis is linked to colorectal cancer, with cancer patients twice as likely to carry it, according to Flemming Damgaard from Denmark.
- The analysis used nearly 900 stool samples from the United States, Europe, and Asia.
- Damgaard notes the virus may signal gut health changes, while its cancer causation remains unclear.
- Preliminary findings suggest the virus could identify about 40% of cancer cases, with further studies needed.
