ISM / SCIENCE PHOTO LIBRARY ISM / SCIENCE PHOTO LIBRARY
Light micrograph of Candida albicans infection of the lining of a human oesophagus. Candida albicans (seen here as dark pink rods) is a fungus normally present in the mouth, which is kept under control by bacteria which also live there. If a course of antibiotics kills the bacteria, or the patient's immune system is suppressed in any way, the fungus may multiply excessively causing sore white patches. The infection can be treated with antifungal drugs. Celled stained with PAS. Magnification: x1150 when printed 10cm wide.
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