Neisseria mucosa

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Neisseria mucosa

Neisseria mucosa (pronunciation: nigh-seer-ee-uh moo-coh-suh) is a species of Gram-negative bacteria belonging to the genus Neisseria. It is commonly found in the human respiratory tract and is generally considered non-pathogenic, meaning it does not typically cause disease.

Etymology

The name Neisseria is derived from the German bacteriologist Albert Ludwig Sigesmund Neisser, who first discovered the genus. The term mucosa, from the Latin mucosus, refers to the mucus membranes where this bacterium is commonly found.

Characteristics

Neisseria mucosa is a coccus-shaped bacterium that is often found in pairs (diplococci) or in short chains. It is oxidase-positive and catalase-positive, and can ferment glucose and maltose.

Clinical Significance

While Neisseria mucosa is typically non-pathogenic, it has been occasionally associated with human infections, particularly in individuals with compromised immune systems. However, it is far less commonly implicated in disease than other members of the Neisseria genus, such as Neisseria meningitidis and Neisseria gonorrhoeae.

Related Terms

  • Neisseria: The genus to which Neisseria mucosa belongs.
  • Gram-negative bacteria: A group of bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation.
  • Respiratory tract: The pathway that makes respiration possible, including the nose, mouth, throat, larynx, trachea, bronchi, and lungs.
  • Immune system: The body's defense against infectious organisms and other invaders.

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