10 June 2011
Vol 332, Issue 6035

About The Cover

Cover image expansion

COVER Bright-field light microscopy image of peritoneal cells, including a macrophage undergoing cell division (center cell, ~20 micrometers across), taken from mice treated with the cytokine interleukin-4. On page 1284, Jenkins et al. describe a mechanism of inflammation in response to parasitic nematode infection whereby macrophages expand in number through cell division rather than by recruitment from the blood. Photo: Stephen Jenkins, University of Edinburgh, UK