Bacillus anthracis

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Definition
  1. Noun:
    • A species of bacterium: Bacillus anthracis is a specific, rod-shaped, spore-forming bacterium.
    • The causative agent of anthrax: This bacterium is the direct cause of the infectious disease anthrax in humans and various animals.
    • A potential biological weapon: Due to its hardiness and pathogenicity, it can be used as an agent of bioterrorism.
Usage Examples
  • Noun:
    • The laboratory confirmed the presence of Bacillus anthracis in the tissue sample.
    • Vaccines have been developed to protect against infection by Bacillus anthracis.
    • Handling animal hides can pose a risk of exposure to Bacillus anthracis.
Advanced Usage
  • Scientific nomenclature: The name is always written in italics, with the genus () capitalized and the species epithet () in lowercase.
    • Correct: Bacillus anthracis is a Gram-positive bacterium.
  • Referring to the disease vs. the bacterium: The word "anthrax" refers to the disease, while refers specifically to the organism that causes it.
    • Anthrax is caused by the bacterium Bacillus anthracis.
Variants and Related Words
  • Anthrax (n): The disease caused by .
    • Cutaneous anthrax is the most common form of the disease.
  • Bacillus (n, capitalized): The genus name for a group of rod-shaped bacteria.
    • Not all bacteria in the genus Bacillus are harmful.
  • Spore (n): The dormant, resistant form of the bacterium that can survive in the environment for long periods.
    • The spores of Bacillus anthracis are highly resistant.
Synonyms
  • Anthrax bacterium: A common descriptive synonym.
    • The anthrax bacterium was identified in the 19th century.
Related Phrases and Terms
  • Weaponization: The process of preparing spores for use as a biological weapon.
    • The weaponization of Bacillus anthracis is a major biosecurity concern.
  • Cutaneous/Inhalational/Gastrointestinal anthrax: Terms for the different forms of the disease, based on the route of infection.
    • Inhalational anthrax, caused by breathing in Bacillus anthracis spores, is the most severe form.
Noun
  1. a species of bacillus that causes anthrax in humans and in animals (cattle and swine and sheep and rabbits and mice and guinea pigs); can be used a bioweapon

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