Harmless bacterium edges out intestinal germ

Clostridium scindens inhibits closely related microbe C. difficile

Clostridium difficile

BACTERIA VS. BACTERIA  Mice exposed to Clostridium difficile (shown) are protected by a related microbe, C. scindens.

Janice Haney Carr/CDC

Gut infections from the bacterium Clostridium difficile can be fought with a closely related but harmless microbe known as C.