NIAID / NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY NIAID / NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY
Neutrophil engulfing MRSA. Coloured scanning electron micrograph (SEM) of a neutrophil white blood cell (purple) engulfing methicillin-resistant Staphylococcus aureus bacteria (MRSA, yellow). This process is called phagocytosis. MRSA is a round (coccus) Gram positive bacterium that is resistant to many commonly prescribed antibiotics. Neutrophils are the most abundant white blood cell and are part of the body's immune system.
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