Spleen chronic infection DC and CTL (IMAGE) University of Melbourne Caption A part of the spleen during chronic viral infection. Dendritic cells are green, killer T cells are red, B cells are blue and stromal cells are magenta. Credit Würzburg Institute of Systems Immunology, Max-Planck Research Group. Usage Restrictions For use by news organisations, otherwise with permission of Würzburg Institute of Systems Immunology, Max-Planck Research Group. 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.