Bacteria in the human gut can directly deliver proteins into human cells, actively shaping immune responses. A consortium led ...

In the fight against bacterial pathogens, researchers are combining vaccination with targeted colonization of the intestine by harmless microorganisms. This approach could potentially mark a turning ...

Our skin is a crucial, protective barrier that is considered to be a major part of our immune defenses. When pathogens try to infect us, they have to get into our bodies or into our cells, and ...