Klebsiella morphology :
- Short , plump, straight rods
- Non motile
- Capsulated
- Gram negative
- Facultative anaerobic
Culture characteristics :
- Nutrient agar :
- Large dome shaped colony
- Mckonkey agar :
- Lactose fermenting pink colony
Biochemical reaction :
- IMVIC : “-,-,+,+”
- Sugar :
- Glucose
- Lactose
- Sucrose
- Mannitol
- Acid
- Abundant Gas
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:
Culture | GNB – capsulated |
Identification | Biochemical reaction |
Antibiotic sensitivity test | Must be done |