Obesity surgery leads to emergence of new microbial strains in the human fecal community

Using a unique bioinformatics technique, researchers have detected the emergence of new strains of microbes in the human fecal microbiota after obesity surgery. These new strains emerged after surgical disruption of the stomach and upper small intestine. In contrast, the researchers found that strains of the human gut fecal microbiota resembled those found pre-surgery following surgery in the colon.