MRSA (IMAGE) National Science Foundation Caption Methicillin-resistant <i>Staphylococcus aureus</i> bacteria, more commonly known as MRSA. It is a bacteria resistant to many antibiotics; in medical facilities, MRSA causes causes life-threatening bloodstream infections and pneumonia. In this image, the MRSA (in yellow), is being ingested by neutrophil (in purplish blue), a type of white blood cell. Credit NIH/National Institute of Allergy and Infectious Diseases 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.