Anthrax (IMAGE) University of California - San Diego Caption A false-colored yellow neutrophil, one of several types of white blood cells that comprise the body's immune system, engulfs anthrax bacteria (orange). Credit UC San Diego School of Medicine Usage Restrictions Contact Scott LaFee at slafee@ucsd.edu 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.