is a Gram‐negative bacillus. This bacillus was until recently often confused with spp. It is known primarily for causing histamine fish poisoning or scombroid syndrome, and rarely causes human infections. This case report discusses a patient who presented with generalized primary peritonitis due to

Case presentation:

A 53‐year‐old Scandinavian man resident in Botswana, sub‐Saharan Africa, presented to the emergency department shortly after onset of lower abdominal pain and dysuria. He was treated for urinary tract infection and discharged. He came back after 16 h with more severe, generalized abdominal pain and a fever of 38 °C. Abdominal sonography was unremarkable. Examination confirmed peritonitis, particularly marked in the right iliac fossa. He had mild leukocytosis 13.1×10 l, a C‐reactive protein level of 372.7 mg l and his serum albumin level was 31 g l. He was admitted for parenteral antibiotics, laparoscopic peritoneal lavage and appendectomy. He had 500 ml of free pus in the abdomen with no evident focal source. A pus swab grew The pathology showed mild early acute appendicitis with severe periappendicitis and suppurative peritonitis. He was discharged home after 7 days of parenteral antibiotics.


infections are rare in humans, but they can be life‐threatening.

  • This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/).

Article metrics loading...

Loading full text...

Full text loading...



  1. Al‐Hulu S.M., Al‐Charrakh A.H., Al‐Saadi M.A.K. ( 2009). Isolation and characterization of Raoultella ornithinolytica from clinical specimens in Hilla city, Iraq. Med J Babylon 7:42–47
    [Google Scholar]
  2. Alves M.S., Riley L.W., Moreira B.M. ( 2007). A case of severe pancreatitis complicated by Raoultella planticola infection. J Med Microbiol 56:696–698 [CrossRef]
    [Google Scholar]
  3. Drancourt M., Bollet C., Carta A., Rousselier P. ( 2001). Phylogenetic analyses of Klebsiella species delineate Klebsiella and Raoultella gen. nov., with description of Raoultella ornithinolytica comb. nov., Raoultella terrigena comb. nov. and Raoultella planticola comb. nov. Int J Syst Evol Microbiol 51:925–932 [CrossRef]
    [Google Scholar]
  4. Hadano Y., Tsukahara M., Ito K., Suzuki J., Kawamura I., Kurai H. ( 2012). Raoultella ornithinolytica bacteraemia in cancer patients: report of three cases. Intern Med 51:3193–3195 [CrossRef]
    [Google Scholar]
  5. Kim J.E., Seo R.M., Park K.S., Lee W.J., Kim Y.J., Kim S.Y., Cho Y.K. ( 2010). A case of necrotizing fasciitis caused by Raoultella ornithinolytica . Infect Chemother 42:411–414 [CrossRef]
    [Google Scholar]
  6. Lehloenya R., Christians S. ( 2011). A case of chronic urticaria complicated by Raoultella ornithinolytica urinary tract infection, bronchospasm and angioedema. In XX11 World Allergy Congress, 7 December 2011 Cancun, Mexico: https://wao.confex.com/wao/2011wac/webprogram/Paper3341.html
    [Google Scholar]
  7. Masashi K., Tomoko Y., Teizo T., Tadayoshi S. ( 2002). Klebsiella pneumoniae produces no histamine: Raoultella planticola and Raoultella ornithinolytica strains are histamine producers. Appl Environ Microbiol 68:3462–3466 [CrossRef]
    [Google Scholar]
  8. Mau N.B.S., Ross L.A. ( 2010). Raoultella ornithinolytica bacteremia in an infant with visceral heterotaxy. Pediatr Infect Dis J 29:477–478 [CrossRef]
    [Google Scholar]
  9. Morais P.V., Daporta T.M., Bao F.A., Campello G.M. ( 2009). Enteric fever‐like syndrome caused by Raoultella ornithinolytica ( Klebsiella ornithinolytica) . J Clin Microbiol 47:868–869 [CrossRef]
    [Google Scholar]
  10. Walckenaer E., Poirel L., Leflon‐Guibout V., Nordmann P., Nicolas‐Chanoine M.H. ( 2004). Genetic and biochemical characterization of the chromosomal class A β‐lactamases of Raoultella (formerly Klebsiella) planticola and Raoultella ornithinolytica. . Antimicrob Agents Chemother 48:305–312 [CrossRef]
    [Google Scholar]
  11. Yalcin S., Enes E.G., Huseyin A., Nejdet G., Halil Z.T. ( 2011). A rare human infection of Raoultella ornithinolytica in a diabetic foot lesion. Ann Saudi Med 31:93–94
    [Google Scholar]

Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error