is one of the four yellow-pigmented members of the genus . To date, a single report of isolated from a human sample has been published.

Case presentation:

We report three cases of spontaneous bacterial peritonitis in patients with liver cirrhosis that all occurred in Quebec, Canada. Ascitic fluid analysis revealed the presence of in culture. Identification was made by classical biochemical testing and MALDI-TOF MS, as well as 16S rRNA and elongation factor () gene sequencing. Two of the three patients recovered after antimicrobial treatment.


This report identifies as a novel human pathogen that appears to possess particular but as-yet unidentified virulence factors that favour the development of peritoneal fluid infections, as previously reported for other species. Clinical microbiologist should be aware of this micro-organism which can be identified by phenotypic and molecular methods.


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  1. Alexopoulou A., Papadopoulos N., Eliopoulos D.G., Alexaki A., Tsiriga A., Toutouza M., Pectasides D.. 2013; Increasing frequency of gram-positive cocci and gram-negative multidrug-resistant bacteria in spontaneous bacterial peritonitis. Liver Int33:975–981 [CrossRef][PubMed]
    [Google Scholar]
  2. Bekal S., Gaudreau C., Laurence R. A, Simoneau E., Raynal L.. 2006; Streptococcus pseudoporcinus sp. nov., a novel species isolated from the genitourinary tract of women. J Clin Microbiol44:2584–2586 [CrossRef][PubMed]
    [Google Scholar]
  3. Bennett J. E, Dolin R., Blaser M. J. 2015; Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases, 8th edn. Philadelphia, PA: Churchill Livingstone Elsevier;
    [Google Scholar]
  4. CLSI 2014; Performance Standards for Antimicrobial Susceptibility Testing; 24th Informational Supplement M100-S24 Wayne, PA: Clinical and Laboratory Standards Institute;
    [Google Scholar]
  5. Gagnon S., Lévesque S., Lefebvre B., Bourgault A. M, Labbé A. C, Roger M.. 2011; vanA-containing Enterococcus faecium susceptible to vancomycin and teicoplanin because of major nucleotide deletions in Tn1546. J Antimicrob Chemother66:2758–2762 [CrossRef][PubMed]
    [Google Scholar]
  6. Reuken P. A, Pletz M. W, Baier M., Pfister W., Stallmach A., Bruns T.. 2012; Emergence of spontaneous bacterial peritonitis due to enterococci – risk factors and outcome in a 12-year retrospective study. Aliment Pharmacol Ther35:1199–1208 [CrossRef][PubMed]
    [Google Scholar]
  7. Tamura K., Peterson D., Peterson N., Stecher G., Nei M., Kumar S.. 2011; mega5: molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods. Mol Biol Evol28:2731–2739 [CrossRef][PubMed]
    [Google Scholar]
  8. Tyrrell G. J, Turnbull L., Teixeira L. M, Lefebvre J., Carvalho M. G, Facklam R. R, Lovgren M.. 2002; Enterococcus gilvus sp. nov. and Enterococcus pallens sp. nov. isolated from human clinical specimens. J Clin Microbiol40:1140–1145 [CrossRef][PubMed]
    [Google Scholar]
  9. Yakar T., Güçlü M., Serin E., Alişkan H. 2010; A recent evaluation of empirical cephalosporin treatment and antibiotic resistance of changing bacterial profiles in spontaneous bacterial peritonitis. Dig Dis Sci55:1149–1154 [CrossRef][PubMed]
    [Google Scholar]

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