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 ...

After a meal of questionable seafood or a few sips of contaminated water, bad bacteria can send your digestive tract into overdrive. Your intestines spasm and contract, efficiently expelling ...

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 ...