Wautersiella

Wautersiella is a genus of bacteria most closely related to Empedobacter brevis in the family Flavobacteriaceae and the order Flavobacteriales. Originally described in 2006 by Kämpfer et al. based on 26 clinical isolates from Belgium that shared 94-95% homology after 16S ribosomal RNA sequencing. The species described was named Wautersiella falsenii in honor of contemporary microbiologists Belgian Georges Wauters and Norwegian Enevold Falsen.

Wautersiella
Scientific classification
Kingdom:
Bacteria
Phylum:
Bacteroidetes
Class:
Flavobacteria
Order:
Flavobacteriales
Family:
Weeksellaceae
Genus:
Wautersiella

Kämpfer et al. 2006
Type species
Wautersiella falsenii
Species

Wautersiella falsenii

Characteristics

Wautersiella falsenii is an aerobic, Gram-negative, non-lactose fermenting, non-motile, oxidase-, urease- and catalase-positive, organism 2–3 um in length. The notable distinction between Wautersiella falsenii and Empedobacter brevis is that the latter is urease negative.[1]

Clinical significance

This organism has been isolated from clinical specimens, including blood, respiratory samples, wounds, pleural fluid[1] and the urinary tract.[2] though it is an extremely rare cause of nosocomial infection, it may be significant resistant to many antibiotics, including carbapenems. Recently, it has been found in the context of patient surveillance for carbapenem-resistant organisms with CHROMagar KPC.[3]

References
  1. Kämpfer, P; Avesani V; Janssens M; Charlier J; De Baere T; Vaneechoutte M (2006). "Description of Wautersiella falsenii gen. nov., sp. nov., to accommodate clinical isolates phenotypically resembling members of the genera Chryseobacterium and Empedobacter". Int J Syst Evol Microbiol. 56 (10): 2323–9. doi:10.1099/ijs.0.64393-0.
  2. van der Velden, LB; de Jong AS; de Jong H; de Gier RP; Rentenaar RJ (December 2012). "First report of a Wautersiella falsenii isolated from the urine of an infant with pyelonephritis". Diagn Microbiol Infect Dis. 74 (4): 404–5. doi:10.1016/j.diagmicrobio.2012.08.008. PMID 22999333.
  3. Venkatachalam, I; Teo J; Balm MN; Fisher DA; Jureen R; Lin RT (August 2012). "Klebsiella pneumoniae Carbapenemase-producing enterobacteria in hospital, Singapore". Emerg Infect Dis. 18 (8): 1381–3. doi:10.3201/eid1808.110893. PMC 3414009. PMID 22840461.
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