EUGENE, Ore. — With the holidays over and all the rich and fatty foods behind us, if your gut still is feeling a bit off, it could be bad bacteria. Bad bacteria from a questionable meal or ...

A new study shows how one kind of bacteria, Vibrio cholerae, triggers painful intestinal contractions by activating the immune system. The research also finds a more general explanation for how the ...

Immune cells (magenta) and cells expressing a reporter of immune stimulation (cyan), imaged in 3D in a live zebrafish larva. The cells are dynamic, and in our experiments we found that their ...