As people move to the United States from Southeast Asia, the microbes in their digestive tracts begin to Westernize, possibly explaining high rates of obesity and other metabolic issues in these immigrant populations.

Using wild mice housed in laboratory conditions, researchers find that gut bacteria compositions change little from one generation to the next.

Experiments in mice and people find that probiotic supplements don’t consistently change the composition of the gut microbiome, and may have adverse effects after antibiotics.

Antibiotics boost men’s responses to the oral rotavirus vaccine.

Acute bouts of diarrhea could have lasting effects on the microbiota and host immune system activation, a mouse study suggests.

A new study finds that more than 200 human-targeted, non-antibiotic drugs inhibit the growth of bacterial species that make up part of the human microbiome.

Including microbiome composition in predictions of whether a person is obese can significantly improve their accuracy, according to an analysis.

Scientists are beginning to unravel the ways in which we develop a healthy relationship with the bugs in our bodies.

Rather than organizing into easily defined compartments, different microbes mix and intermingle within the mouse gut, scientists find.