Neisseria species

  • Gram staining properties:

    • Gram negative diplococci (Kidney bean shaped, facing one another)

      • DDx: Moraxella catarrhalis is gram neg diploccoci, but "Hockey puck" consistency

  • Special Lab Tests:

    • Oxidase POSITIVE (ALL Neisseria sp.)

      • DDx: Moraxella catarrhalis is also Oxidase pos, but does NOT ferment any of the sugars. ​​

    • Tests for fermentation of the sugars Glucose, Maltose and Lactose to distinguish between the types (see below)

      • N. Gonorrhoeae- Glucose ONLY

      • N. Meningitidis- Glucose + Maltose

      • N. Lactamica- Glucose + Maltose + Lactose

  • Virulence factors:

  • Clinical Presentation & Diseases:

Neisseria gonorrhoeae

Neisseria gonorrhoeae

Neisseria meningitidis

Neisseria lactamica

MICRO & IMMUNO 

INDEX

PREVIOUS TOPIC

NEXT TOPIC

  • Facebook - Black Circle
  • Twitter - Black Circle
  • Pinterest - Black Circle

DISCLAIMER: THIS WEBSITE DOES NOT PROVIDE MEDICAL ADVICE

These posts contain high yield information collected from various educational resources including textbooks, journal articles, educational websites and more. They are intended for educational use only and should NOT be taken as medical advice. I strongly believe the spreading of knowledge and depth of learned information should be encouraged in today's society rather than coveted. Membership is required to view these posts  and should be used solely for educational purposes only.