Veillonella parvula

Display:

Gram stain Culture

General information
- Taxonomy
  Family: Veillonellaceae
  
  Natural habitats
  Is widely distributed in the oral, genitourinary, respiratory, and intestinal biotas of humans and animals.
  
  Clinical significance
  Veionella species strains are frequently isolated from clinical specimens in aerobic-anaerobic polymicrobial cultures.
  Rarely, Veillonella species have been the only etiologic agents identified in serious infections such as meningitis, osteomyelitis, prosthetic joint infection, pleuropulmonary infection, endocarditis, and bacteremia.
  
  The prevalence of these organisms as pathogens is clearly increasing.
Gram stain
- Gram negativecocci
  
  0.3 to 0.5 µm,
Culture characteristics
- Obligate anaerobic
  
  BBAØ: colonies are small, almost transparant, gray white, smooth, opaque, buttery.
  
  BBEØ: no growth
  
  Fluorescence under long-wave UV light (Woods lamp)
  Red fluorescence immediately after opening the anaerobic jar.
Characteristics
References
- James Versalovic et al.(2011) Manual of Clinical Microbiology 10th Edition