Germinal Center (image) Helmholtz Centre for Infection Research Caption Theory of colors for immunologists and sophisticatedly designed microscopy technologies offer scientists insights into the evolution of antibody producers in the lymph node. Antibodies and immune cells are marked with different colors. Credit © University of Birmingham/Toellner Usage Restrictions You may use this image for noncommercial purposes provided that you give credit to the author. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.