yersinia pestis

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Definition
  1. Noun:
    • A pathogenic bacterium: Yersinia pestis is a Gram-negative, rod-shaped bacterium of the family Enterobacteriaceae.
    • The causative agent of plague: It is the specific bacterium responsible for causing bubonic, septicemic, and pneumonic plague in humans and other mammals.
Usage Examples
  • Noun:
    • The Black Death of the 14th century was caused by Yersinia pestis.
    • Scientists study Yersinia pestis to understand its transmission and develop vaccines.
    • A confirmed diagnosis required the isolation of Yersinia pestis from the patient's sample.
Advanced Usage
  • Scientific and Medical Context: The term is used almost exclusively in technical, historical, and public health contexts.
    • The genomic analysis of ancient Yersinia pestis has revealed insights into historical pandemics.
  • Bioweapon Concern: Refers to the potential malicious use of the bacterium.
    • International treaties aim to prevent the weaponization of pathogens like Yersinia pestis.
Variants and Related Words
  • Plague bacillus: A common historical and alternative name for .
  • Y. pestis: The standard abbreviated form used in scientific literature.
  • Pasteurella pestis: An obsolete taxonomic name for the same bacterium.
Synonyms
  • Plague bacterium: A descriptive synonym emphasizing the disease it causes.
Related Phrases and Terms
  • Bubonic plague: The most common form of plague, characterized by swollen lymph nodes (buboes), caused by .
  • Pneumonic plague: A severe lung infection form of plague caused by .
  • Septicemic plague: A bloodstream infection form of plague caused by .
Noun
  1. a bacillus bacterium that causes the plague; aerosolized bacteria can be used as a bioweapon

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