Morganella morganii

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Gram stain Culture

General information
- General information
  morganii from: Harry de Riemer Morgan (1863-1931), physician te London
  
  Taxonomy
  Family: Morganellaceae
  M. morganii
  - M. morganii ssp morganii
  - M. morganii ssp sibonii
  
  Natural habitats
  Widely distributed in nature are normal inhabitants of the gut.
  
  Clinical significance
  Is most frequently considered a health care-associated pathogen, primarily causing urinary tract infections, though wound infections and bacteremias are also commonly encountered.
  Respiratory infections are rare.
Gram stain
- Gram negative straight rods,
  
  1.0 x 1.7 µm
  
  Can vary in length, from coccoid rods to long wire forms
Culture characteristics
- Facultative anaerobic
  
  BA: large, gray, ß-hemolytic and moist colonies
  
  Morganella morganii, swarms only in culture media with a small amount of agar.
  
  McConkey: growth, non lactose fermenter
  
  BBAØ: growth
Characteristics
References
- James Versalovic et al.(2011) Manual of Clinical Microbiology 10th Edition