Elizabethkingia
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MICROBIOLOGY
- Elizabethkingia meningoseptica, non-fermenting Gram-negative bacillus. Main organism described as a human pathogen in this class.
- Previously known as Chryseobacterium meningosepticum, and prior to this, Flavobacterium meningosepticum.
- Hardy organisms found in water, soil--ubiquitous in hospital environments.
- Positive findings for catalase, oxidase and indole. Growth is better at 40°C.
- May be confused with Burkholderia cepacia, Aeromonas salmonicida or Sphingobacterium spp.
- Multi-drug resistance the norm including carbapenems:
- Class A extended-spectrum β-lactamases and Metallo-β-lactamases, BlaB (subclass B1) and GOB (subclass B3) described.
- Class A extended-spectrum β-lactamases and Metallo-β-lactamases, BlaB (subclass B1) and GOB (subclass B3) described.
- E. miricola: usually multi-drug resistant.
- E. anophelis: typically identified through MALDI-TOF.
- Outbreak (2015-2016) in Wisconsin and Michigan.
- Appears to be less drug-resistant than E. meningoseptica.
- Three other species proposed as additions: E. bruuniana, E. ursingii, and E. occulta.
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MICROBIOLOGY
- Elizabethkingia meningoseptica, non-fermenting Gram-negative bacillus. Main organism described as a human pathogen in this class.
- Previously known as Chryseobacterium meningosepticum, and prior to this, Flavobacterium meningosepticum.
- Hardy organisms found in water, soil--ubiquitous in hospital environments.
- Positive findings for catalase, oxidase and indole. Growth is better at 40°C.
- May be confused with Burkholderia cepacia, Aeromonas salmonicida or Sphingobacterium spp.
- Multi-drug resistance the norm including carbapenems:
- Class A extended-spectrum β-lactamases and Metallo-β-lactamases, BlaB (subclass B1) and GOB (subclass B3) described.
- Class A extended-spectrum β-lactamases and Metallo-β-lactamases, BlaB (subclass B1) and GOB (subclass B3) described.
- E. miricola: usually multi-drug resistant.
- E. anophelis: typically identified through MALDI-TOF.
- Outbreak (2015-2016) in Wisconsin and Michigan.
- Appears to be less drug-resistant than E. meningoseptica.
- Three other species proposed as additions: E. bruuniana, E. ursingii, and E. occulta.
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