Dartmouth researchers discover that coevolution between humans and bacteria reduces gastric cancer risk

Research carried out in two distinct communities in Colombia illustrates how coevolution between humans and bacteria can affect a person's risk of disease. Working with colleagues in Columbia and the U.S., Scott Williams, PhD, a professor of genetics at the Geisel School of Medicine and the Institute of Quantitative Biomedical Sciences at Dartmouth, and his graduate student Nuri Kodaman discovered that the risk of developing gastric cancer depends heavily on both the ancestry of the person and the ancestry of Helicobacter pylori with which that person is infected. Read more here.