“New research (from University of Washington School of Medicine) suggests that the presence of certain bacteria in a gut biome may be an indicator of colon polyps that will become cancerous.”
Article: https://www.genengnews.com/news/gut-bacteria-may-point-to-early-detection-of-colon-cancer/
Paper: https://www.cell.com/cell-host-microbe/fulltext/S1931-3128(21)00389-9
Genomic and functional characterization of a mucosal symbiont involved in early-stage colorectal cancerKordahi, Melissa C. et al.Cell Host & Microbe, Volume 29, Issue 10, 1589 – 1598.e6