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Neisseria - PowerPoint PPT Presentation

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Neisseria

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  1. Neisseria

  2. Neisseria • Colonial morphology • Microscopic appearance • serogrouping of Neisseria • - Biochemical tests of Neisseria

  3. Neisseria

  4. Neisseriameningitidis - Pyogenic meningitis - Meningococcal septicaemia - Chronic meningococcal arthritis

  5. Neisseriameningitidis • Cerebrospinal fluid • Blood for culture • Swabs from haemorrhagic skin lesions

  6. Neisseriameningitidis non-motile Gram negative diplococcus (with joining sides flattened)

  7. Neisseriameningitidis In smears from specimens, meningococci are found inside pus cells (intracellular)

  8. Neisseriameningitidis In smears from specimens, meningococci are found inside pus cells (intracellular)

  9. Neisseriameningitidis Chocolate agar:- transparent or grey, shiny, 1-2 mm colonies after incubation in CO2

  10. Neisseriameningitidis Oxidase Test

  11. Neisseriameningitidis Carbohydrate Utilization

  12. Neisseriagonorrhoeae - Gonorrhoeae • Acute conjunctivitis • (OphthalmiaNeonatorum) - Vulvovaginitis - Gonococcal arthritis

  13. Neisseriagonorrhoeae • Urethral and cervical exudate • Urine • Eye Swab • Rectal Swab

  14. Neisseriagonorrhoeae non-motile, non-capsulate Gram negative diplococcus (with joining sides flattened)

  15. Neisseriagonorrhoeae In smears from specimens, gonococci are found inside pus cells (intracellular)

  16. Neisseriagonorrhoeae Chocolate agar:- colourless, raised, 1-2 mm in diameter colonies

  17. Neisseriagonorrhoeae MNYC agar:- small, raised, translucent colonies

  18. Neisseriagonorrhoeae Thayer-Martin agar:- small, raised, grey colonies

  19. Neisseriagonorrhoeae Oxidase Test

  20. Neisseriagonorrhoeae Carbohydrate Utilization