How Best to Treat Infections and Tumors (IMAGE) Penn State Caption This image shows methicillin-resistant Staphylococcus aureus (top, purple), cancer cells (bottom). Treatment designed to contain, rather than eliminate, chronic infections or tumors where drug resistance can emerge may delay treatment failure. Credit NIAID (MRSA), Dr. Cecil Fox (Photographer), via Wikimedia Commons (cancer cells). Usage Restrictions The image credit must be published along with the image. 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.