Scientists discover immune genes influence which gut bacteria live in animals by studying a tiny island bird population.

Live bacteria from the digestive system can travel directly into the brain when the intestinal barrier is weakened. This ...

A new study shows that a high fat diet may weaken the gut barrier and allow bacteria to travel toward the brain through the vagus nerve.

It's an oft-cited strange-but-true fact: There are as many bacteria in your gut as there are other cells in your body. This community of microbes (not just bacteria, but viruses, fungi, archaea, and ...

Earth's bacteria are evolving to survive in space. Several strains sourced from the International Space Station (ISS) differed from the same strains on Earth, having qualities specifically adapted to ...

Physicians have relied on a class of antibiotics called polymyxins to fight potentially life-threatening Gram-negative bacterial infections for more than 80 years. These drugs are typically reserved ...

Perfectly adapted microorganisms live in extreme environments from deep-sea trenches to mountaintops. Learning more about how these extremophiles survive in hostile conditions could inform scientists ...

WASHINGTON (AP) — Surprising new research shows a small but diverse community of bacteria lives in the placentas of healthy pregnant women, overturning the belief that fetuses grow in a pretty sterile ...

Perfectly adapted microorganisms live in extreme environments from deep-sea trenches to mountaintops. Learning more about how these extremophiles survive in hostile conditions could inform scientists ...