JOHN WALSH / SCIENCE PHOTO LIBRARY JOHN WALSH / SCIENCE PHOTO LIBRARY
Phase contrast light micrograph of a group of Staphylococcus aureus, a type of non-motile, spherical bacteria. They are common on the skin and in mucous membranes where they can cause boils or internal abscesses. Magnification: X 300 at 35mm size, X 600 at 6x7cm size.
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