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 ...

Knowing how germs are transmitted is key to preventing disease, and it varies for different bacteria, viruses, and other pathogens. In some cases, you have to come into direct contact with an infected ...

A large study has revealed that dozens of widely used chemicals can damage beneficial gut bacteria. Many of these substances, ...

Our gut is a bustling hub of activity, home to trillions of microbes that work together with our bodies to keep us healthy. A ...