Researchers find strains of the bacterium Klebsiella pneumoniae that produce high levels of alcohol in 60 percent of patients with the condition.

Research on hundreds of babies finds the delivery method is linked with a greater abundance of taxa more frequently seen in hospitals.

Physical activity, independent of diet, shifts the composition of bacteria in the intestines, spurring researchers to search for species that might provide benefits akin to working out.

An experiment delves into how the microbiome shapes immunity.

Molecules produced by resident bacteria and their hosts may signal immune cells to attack the body’s own tissues.

In a study of nearly 400 breastfeeding mothers, researchers find links between directly feeding the child and a more diverse microbiota, compared to milk from pumping.

Researchers find that it’s not just high-risk genes, but how children’s bodies respond to their own intestinal microbiota that relates to future diagnoses of type 1 diabetes.

Small microRNA-containing particles found in the plant can boost populations of healthy gut bacteria, and even improve colitis symptoms in mice.

A review finds that for several conditions, poop from certain healthy people is more likely to provide relief for recipients.