Germinal centers (IMAGE) Rockefeller University Caption A lymph node with clusters of germinal centers full of mature B cells (red), dotted with less evolved “naive” B cells (green). Credit Laboratory of Lymphocyte Dynamics Usage Restrictions Image may be used only to illustrate the research described in the accompanying release. License Original content 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.