Staphylococcus lugdunensis

Display:

Gram stain Culture

General information
- Taxonomy
  Family: Staphylococcaceae
  
  Natural habitats
  In humans they ranges from a harmless skin commensal to a life-threatening pathogen
  
  Clinical significance
  S. lugdunensis can cause a variety of infections, including endocarditis, skin and soft tissue infections, osteomyelitis, and prosthetic device-related infections.
  
  It is known for its potential to cause severe, invasive infections similar to S. aureus.
  
  Early detection and appropriate treatment are critical due to its virulence and ability to develop antibiotic resistance.
  
  Is repeatedly CNS, in pure culture or in mixed culture isolated from the material, then this confirms the presence of an infection.
  
  The correct identification of CNS is necessary in order to get an idea of the pathogens in this group.
Gram stain
- Gram positive cocci,
  
  0.6-1.3 µm
  
  that occur in irregular grape-like clusters and,
  
  less often, single and in pairs, tetrads, and in short chains.
Culture characteristics
- Facultative anaerobic
  
  BA: medium to large; smooth, glossy, entire edge with slightly domed center; nonpigmented or cream to yellow-orange, may be β-hemolytic
  
  McConkey: growth
  
  BBAØ: growth
  
  Smell: after 48 they can have a characteristic sweet, hay-like odor
Characteristics
References
- James Versalovic et al.(2011) Manual of Clinical Microbiology 10th Edition