A. DOWSETT, PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY A. DOWSETT, PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY
False-colour transmission electron micrograph (TEM) of a colony of Listeria monocytogenes, an aerobic, non-sporing, Gram-positive species of flagellate bacteria. L. monocytogenes causes disease in humans, usually meningitis or septicaemia, that occurs in new-born infants, in the elderly & persons who are delibitated, suffering from malignant disease or on immunosuppressive drugs. Neonatal infections are caused by infection through the mother's vagina. The bacillus is believed to cause a fever in some pregnant women that may lead to abortion or still- birth. Listeria infection is treated with ampicillin. Magnification: x3000 at 35mm size. Gold tint.
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