Scientists have long known that the human body coexists with trillions of individual germs, what they call the microbiome. Until now, they’ve mostly studied those that cause disease: You may recall ...

Antibiotics are designed to kill harmful bacteria and help the body recover from infection. But some antibiotics may also ...

A new study shows that social closeness allows people to exchange gut bacteria, making their internal health more similar.

Add Yahoo as a preferred source to see more of our stories on Google. Certain strains of _E. coli_ can outcompete disease-causing microbes for resources. NIAID/Flickr, CC BY-SA Millions of people in ...

Expelling toxic “forever chemicals” from the body may take guts — or at least, their microbes. Some microbes found in the human gut can absorb some per- and polyfluoroalkyl substances, or PFAS, ...

A new study on mice sheds light on how a body’s immune system develops mechanisms to allow the presence of good bacteria. Sign Up and be kept in the loop each and every day with our free Daily ...