13 April 2011
Vol 3, Issue 78

About The Cover

Cover image expansion

ONLINE COVER A Little Help from Our Friends. Diverse microbial species live within and upon us—our so-called microbiota. This microbial community is essentially another organ that plays a fundamental role in human physiology and disease. In this week's Perspective, Sonnenburg and Fischbach describe research that has begun to dissect mechanisms of microbiota function and outline approaches to the discovery of methods and molecules with which to manipulate these bugs to benefit human health. [CREDIT: CHRIS BICKEL/SCIENCE TRANSLATIONAL MEDICINE]