KENT WOOD / SCIENCE PHOTO LIBRARY KENT WOOD / SCIENCE PHOTO LIBRARY
Anthrax bacteria. Light micrograph of a section through tissue infected with anthrax bacteria (Bacillus anthracis). The Gram-positive bacteria (thin red rods) can be seen throughout the tissue. Commonly a livestock infection, anthrax is passed to humans by contact with contaminated animal hair, hides or excrement. The highly pathogenic bacteria can also remain dormant in the soil for many years within spores. The disease comes in two forms. In cutaneous anthrax, a boil forms at the site of the bacteria's entry. The disease can be cured with prompt antibiotic treatment. Pulmonary anthrax, however, is fatal in most cases. Magnification: x100 at 35mm size.
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