Volume 89 Issue 7, July 2009

The cover shows an electron micrograph of a human eosinophil isolated from the peripheral blood and stimulated with eotaxin, an eosinophil agonist. Immunonanogold electron microscopy reveals major basic protein within secretory vesicles and mobilized specific granules. Color was added to the figure for artistic purposes only. For more information see the paper by Melo et al. on page 769.