Klebsiella | microbiology notes |

Klebsiella | microbiology notes |

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Klebsiella morphology :

  • Short , plump, straight rods
  • Non motile
  • Capsulated
  • Gram negative
  • Facultative anaerobic

Culture characteristics :

  1. Nutrient agar :
    1. Large dome shaped colony
  2. Mckonkey agar :
    1. Lactose fermenting pink colony

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Biochemical reaction :

  1. IMVIC : “-,-,+,+”
  2. Sugar :
    1. Glucose
    2. Lactose
    3. Sucrose
    4. Mannitol
    5. Acid
    6. Abundant Gas
Klebsiella | microbiology notes

Pathogenicity :

2nd most popular member aerobic bacterial flora of human intestine

  • Infection :
    • Pneumonia
    • UTI
    • Septicemia
    • Pus forming infection
    • Diarrhoea
  • Pneumonia due to klebsiella has high rate fatality
  • Massive mucoid inflammatory exudate of one or more lobes of lung
  • Necrosis, abscess formation
  • m/c serotype – 1,2,3
  • K.pneumonia – catheter associated UTI

Laboratory Diagnosis:

CultureGNB – capsulated
IdentificationBiochemical reaction
Antibiotic sensitivity testMust be done

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