Staphylococcus aureaus (IMAGE) German Center for Infection Research Caption Digitally colorized scanning electron microscopic image of Staphylococcus aureus bacteria (mustard-colored) enmeshed within a human white blood cell (red-colored). Credit NIAID 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.