Siglec GBS (IMAGE) University of California - San Diego Caption Group B Streptococcus bacteria (green) are shown binding to siglec proteins (red) that densely cover the surface of human immune cells (human cell nuclei in blue). Credit UC San Diego School of Medicine Usage Restrictions None License Licensed 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.