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Fatahi-Bafghi M. Genomic and phylogenomic analysis of Fusobacteriaceae family and proposal to reclassify Fusobacterium naviforme Jungano 1909 into a novel genus as Zandiella naviformis gen. nov., comb. nov. and reclassification of Fusobacterium necrophorum subsp. funduliforme as later heterotypic synonym of Fusobacterium necrophorum subsp. necrophorum and Fusobacterium equinum as later heterotypic synonym of Fusobacterium gonidiaformans. Antonie Van Leeuwenhoek 2024; 117:34. [PMID: 38347234 DOI: 10.1007/s10482-023-01921-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 12/14/2023] [Indexed: 02/15/2024]
Abstract
The family Fusobacteriaceae is a large family within the phylum Fusobacteriota. The reclassification of F. naviforme as Zandiella naviformis gen. nov., comb. nov. is proposed because of the separate and distinct phylogenetic situation on the basis of the results of 16S rRNA gene sequence analysis, the genetic and genomic differences from all other species and subspecies in the Fusobacteriaceae family. The type strain is ATCC 25832; CCUG 50052; NCTC 13121. In phylogenetic trees drawn using complete genome sequences and 16S rRNA gene sequences, F. necrophorum subsp. funduliforme and F. equinum were clades together with F. necrophorum subsp. necrophorum and F. gonidiaformans, respectively. The average nucleotide identity, average amino acid identity, and digital DNA-DNA hybridization values between themes exceeded the cut-off values for species delineation. Based on these results, F. necrophorum subsp. funduliforme and F. equinum should be reclassified as later heterotypic synonyms of F. necrophorum subsp. necrophorum and F. gonidiaformans, respectively.
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Affiliation(s)
- Mehdi Fatahi-Bafghi
- Research Center for Health Technology Assessment and Medical Informatics, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
- Department of Microbiology, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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Toyoshima H, Tanigawa M, Ishiguro C, Tanaka H, Nakanishi Y, Sakabe S. Vertebral osteomyelitis caused by Fusobacterium nucleatum with an associated asymptomatic liver abscess in an immunocompetent adult: a case report and literature review. IDCases 2023; 32:e01754. [PMID: 37096206 PMCID: PMC10121789 DOI: 10.1016/j.idcr.2023.e01754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/27/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023] Open
Abstract
Fusobacterium nucleatum rarely causes vertebral osteomyelitis or liver abscesses, and no reports exist of it concurrently causing vertebral osteomyelitis and pyogenic liver abscess. A 58-year-old woman with a history of periodontitis presented with worsening lumbago, left lower leg pain, numbness, and fever for a week. Physical examination indicated knocking pain at the L2-L3 levels with a psoas sign on the left side. A magnetic resonance image showed L2-S1 vertebral osteomyelitis and intervertebral discitis, with a left psoas major muscle abscess. Vertebral osteomyelitis caused by Staphylococcus aureus was suspected; blood cultures were obtained, and intravenous cefazolin was administered. Computed tomography, which was performed to detect disseminated foci, revealed a multilocular liver abscess. On day 4 of incubation, the anaerobic blood culture bottles were positive for characteristic filamentous gram-negative rods. The empiric antimicrobial therapy was changed to ampicillin/sulbactam. The isolate was identified as F. nucleatum based on 16S rRNA gene sequencing. The liver abscess was drained on day 12. Based on the antimicrobial susceptibility test results, the patient was treated with intravenous ampicillin/sulbactam for 4 weeks followed by oral amoxicillin/clavulanate for an additional 8 weeks and remained disease-free at the 1-year follow-up. Clinicians should consider F. nucleatum as the causative organism for vertebral osteomyelitis presenting with asymptomatic pyogenic liver abscess. The gold standard for identifying and diagnosing F. nucleatum infections is 16S rRNA gene sequencing, and gram staining helps determine appropriate antimicrobials.
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Bonnesen B, Sivapalan P, Naghavi H, Back Holmgaard D, Sloth C, Wiese L, Kolekar S. A unique case of Fusobacterium nucleatum spondylodiscitis communicating with a pleural empyema through a fistula. APMIS 2021; 129:626-630. [PMID: 34418158 DOI: 10.1111/apm.13171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 08/13/2021] [Indexed: 11/29/2022]
Abstract
Species (spp.) belonging to the genus Fusobacterium are anaerobic commensals colonizing the upper respiratory tract, the gastrointestinal tract, and the genitals. Infections with Fusobacterium spp. have been reported at many anatomical sites, including pneumonias and pleural empyemas; however, there are very few published cases of Fusobacterium spp. causing spondylodiscitis or fistulas. Bone infections with Fusobacterium can spread directly to surrounding muscular tissue or by hematogenous transmission to any other tissue including pleurae and lungs. Similarly, pleural infections can spread Fusobacterium spp. to any other tissue including fistulas and bone. Concomitant pleural empyema and spondylodiscitis are rare; however, there are a few published cases with concomitant disease, although none caused by Fusobacterium spp. A 77-year-old female patient was assessed using computed tomography (CT) scanning of the thorax and abdomen, as well as analyses of fluid drained from the region affected by the pleural empyema. A diagnosis of Fusobacterium empyema, fistula, bacteremia, and spondylodiscitis was made, and the patient's condition improved significantly after drainage of the pleural empyema and relevant long-term antibiotic treatment. We describe the first confirmed case with concomitant infection with Fusobacterium nucleatum as spondylodiscitis and pleural empyema connected by a fistula.
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Affiliation(s)
- Barbara Bonnesen
- Department of Pulmonary Medicine, Zealand University Hospital, Roskilde, Denmark
| | - Pradeesh Sivapalan
- Department of Pulmonary Medicine, Zealand University Hospital, Roskilde, Denmark
| | - Hadi Naghavi
- Department of Pulmonary Medicine, Zealand University Hospital, Roskilde, Denmark
| | | | - Carsten Sloth
- Department of Radiology, Zealand University Hospital, Roskilde, Denmark
| | - Lothar Wiese
- Department of Infectious Diseases, Zealand University Hospital, Roskilde, Denmark
| | - Shailesh Kolekar
- Department of Pulmonary Medicine, Zealand University Hospital, Roskilde, Denmark
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Park SE, Yoo HJ, Hong SH, Choi JY, Chae HD. Atypical infectious spondylitis with reduced bone marrow enhancement: "black vertebra sign". Acta Radiol 2020; 61:1553-1561. [PMID: 32088965 DOI: 10.1177/0284185120907228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND A few patients suspected of having infectious spondylitis exhibited a reduced enhancement pattern on postcontrast T1-weighted (T1W) magnetic resonance imaging (MRI). PURPOSE To investigate the characteristics of infectious spondylitis patients who exhibited reduced vertebral enhancement. MATERIAL AND METHODS From January 2010 to November 2017, 456 patients with findings suspicious for infectious spondylitis on 706 postcontrast T1W imaging were retrospectively evaluated. When an affected vertebra exhibited markedly reduced enhancement compared to normal bone marrow (BM), the vertebra was termed a "black vertebra." MRI and computed tomography (CT) imaging findings within two-week intervals and the patients' clinical characteristics were reviewed. RESULTS Ten patients (5 men, 5 women; mean age 66.4 years) whose MRI scans revealed the black vertebra sign were included. Among the 10 patients with black vertebrae, six patients exhibited signal voids in or around the affected vertebral bodies on T2-weighted (T2W) images. Eight patients showed air bubbles on CT images, suggestive of emphysematous infection. However, the typical image findings of infectious spondylitis were uncommon, namely, low BM signal intensity (SI) on T1W images (n=1) and intradiscal fluid-equivalent SI on T2W images (n=5) at an early stage. On follow-up MRI (average interval 7.2 weeks from initial MRI), available for five patients, marked progression of infection was evidenced by increased numbers of affected segments (n=3), low T1 SIs of the affected vertebrae (n=5), and increased contrast enhancement (n=3). Five patients underwent surgery to treat infections not controlled by antibiotics. CONCLUSION A black vertebra sign on postcontrast T1W imaging seems to reflect an early emphysematous infection.
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Affiliation(s)
- Sung Eun Park
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hye Jin Yoo
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Sung Hwan Hong
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Institute of Radiation Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea
| | - Ja-Young Choi
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hee Dong Chae
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea
- Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
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Corona PS, Lung M, Rodriguez-Pardo D, Pigrau C, Soldado F, Amat C, Carrera L. Acute periprosthetic joint infection due to Fusobacterium nucleatum in a non-immunocompromised patient. Failure using a Debridement, Antibiotics + Implant retention approach. Anaerobe 2018; 49:116-120. [PMID: 29307651 DOI: 10.1016/j.anaerobe.2017.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 12/18/2017] [Accepted: 12/21/2017] [Indexed: 01/30/2023]
Abstract
Fusobacterium nucleatum is an obligately anaerobic gram-negative rod, a component of the microbiome of the oropharynx and the gastrointestinal and urogenital tracts, causing an array of human infections which often include periodontal pathologies. As far as we know, there are no previous publications about acute periprosthetic joint infection due to Fusobacterium sp.; we report the first case in the medical literature of an aggressive, acute knee prosthetic infection due to F. nucleatum in a non-immunocompromised patient, unsuccessfully treated with a DAIR approach (Debridement + Antibiotics + Implant Retention).
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Affiliation(s)
- Pablo S Corona
- Septic and Reconstructive Surgery Unit, Orthopedic Surgery Department, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - Mayli Lung
- Microbiology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | | | - Carles Pigrau
- Infectious Diseases Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Francisco Soldado
- Pediatric Hand Surgery and Microsurgery, Hospital Sant Joan De Deu, Barcelona, Spain
| | - Carles Amat
- Septic and Reconstructive Surgery Unit, Orthopedic Surgery Department, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Luis Carrera
- Septic and Reconstructive Surgery Unit, Orthopedic Surgery Department, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
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Cleaver LM, Palanivel S, Mack D, Warren S. A case of polymicrobial anaerobic spondylodiscitis due to Parvimonas micra and Fusobacterium nucleatum. JMM Case Rep 2017; 4:e005092. [PMID: 29026618 PMCID: PMC5630959 DOI: 10.1099/jmmcr.0.005092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 03/29/2017] [Indexed: 12/28/2022] Open
Abstract
Introduction. Here, we present a case of polymicrobial anaerobic spondylodiscitis. Case Presentation. A forty-five year-old female patient was referred to a specialist orthopaedic hospital with an eight week history of back pain without fevers. X-ray imaging and magnetic resonance imaging showed acute osteomyelitis of the twelfth thoracic and first lumbar vertebrae. Prolonged enrichment cultures grew Parvimonas micra and Fusobacterium nucleatum, identified by matrix-assisted laser desorption ionisation-time of flight (MALDI-ToF) mass spectrometry (MS). The patient was successfully treated with six weeks of intravenous ertapenem and oral clindamycin. Conclusion. Anaerobic discitis is rare, and polymicrobial discitis is rarer still. A PubMed literature review revealed only seven cases of F. nucleatum discitis and only twelve cases of P. micra discitis; this includes only one other reported case of a polymicrobial discitis due to infection with both anaerobes. We emphasise the importance of prolonging enrichment culture and the use of fast yet accurate identification of anaerobes using MALDI-ToF MS in these infections.
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Affiliation(s)
| | - Shara Palanivel
- Royal Free London NHS Foundation Trust, London, UK
- Royal National Orthopaedic Hospital, Stanmore, London, UK
| | - Damien Mack
- Royal Free London NHS Foundation Trust, London, UK
- Royal National Orthopaedic Hospital, Stanmore, London, UK
| | - Simon Warren
- Royal Free London NHS Foundation Trust, London, UK
- Royal National Orthopaedic Hospital, Stanmore, London, UK
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Severe forefoot infection complicated by Fusobacterium russii. Anaerobe 2016; 42:162-165. [PMID: 27789247 DOI: 10.1016/j.anaerobe.2016.10.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 10/14/2016] [Accepted: 10/23/2016] [Indexed: 11/23/2022]
Abstract
We present the first case of a complicated foot infection caused by Fusobacterium russii in Austria. F. russii is highly associated with mammals such as cats and dogs. Our case underlines the difficulties in isolation and identification of anaerobes and the pitfalls in antimicrobial treatment of polymicrobial infections.
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Foran I, Kinney MC, Botte MJ, Covey DC. Fusobacterium nucleatum Osteomyelitis of the Femur in a Patient with Hereditary Hemorrhagic Telangiectasia: A Case Report. JBJS Case Connect 2016; 6:e11. [PMID: 29252717 DOI: 10.2106/jbjs.cc.o.00106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
CASE Hereditary hemorrhagic telangiectasia (HHT), also known as Osler-Weber-Rendu syndrome, is an often overlooked cause of orthopaedic-related infections despite a well-accepted association in the literature. We present the case of a forty-seven-year-old man with HHT who developed femoral osteomyelitis and a subsequent pathologic femoral fracture from a rare bacterial species associated with HHT. CONCLUSION Patients with HHT and extremity pain should be carefully evaluated for orthopaedic infections. If an orthopaedic infection is suspected, fastidious organisms should be considered as a possible etiologic agent. PCR (polymerase chain reaction) is helpful when organisms cannot be isolated from traditional culture media.
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Affiliation(s)
- Ian Foran
- University of California, San Diego, San Diego, California
| | | | | | - Dana C Covey
- VA San Diego Healthcare System, San Diego, California
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Fusobacterial head and neck infections in children. Int J Pediatr Otorhinolaryngol 2015; 79:953-8. [PMID: 25980688 DOI: 10.1016/j.ijporl.2015.04.045] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 04/28/2015] [Accepted: 04/29/2015] [Indexed: 11/20/2022]
Abstract
Fusobacterium species are increasingly recognized as a cause of head and neck infections in children. These infections include acute and chronic otitis, sinusitis, mastoiditis, and tonsillitis; peritonsillar and retropharyngeal abscesses; Lemierre syndrome; post-anginal cervical lymphadenitis; and periodontitis. They can also be involved in brain abscess and bacteremia associated with head and neck infections. This review describes the clinical spectrum of head and neck fusobacterial infection in children and their management.
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Endo S, Nemoto T, Yano H, Kakuta R, Kanamori H, Inomata S, Ishibashi N, Aoyagi T, Hatta M, Gu Y, Kitagawa M, Kaku M. First confirmed case of spondylodiscitis with epidural abscess caused by Parvimonas micra. J Infect Chemother 2015; 21:828-30. [PMID: 26188420 DOI: 10.1016/j.jiac.2015.06.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 05/08/2015] [Accepted: 06/09/2015] [Indexed: 12/31/2022]
Abstract
Parvimonas micra was renamed species as within Gram-positive anaerobic cocci and rarely causes severe infections in healthy people. We report the first confirmed case of spondylodiscitis with epidural abscess caused by P. micra in a healthy women. The patient has a pain in low back and anterior left thigh. Magnetic resonance imaging and computed tomography detected the affected lesion at the L2 and L3 vertebral bodies. All isolates from the surgical and needle biopsy specimens were identified as P. micra by 16S rRNA and MALDI-TOF. In this case, P. micra showed high sensitivity to antimicrobial therapy. She was successfully treated with debridement and sulbactam/ampicillin, followed by oral metronidazole for a total of 10 weeks. The causative microorganisms of spondylodiscitis are not often identified, especially anaerobic bacteria tend to be underestimated. On the other hand, antimicrobial therapy for spondylodiscitis is usually prolonged. Accordingly, we emphasize the importance of performing accurate identification including anaerobic bacteria.
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Affiliation(s)
- Shiro Endo
- Department of Infection Control and Laboratory Diagnostics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan.
| | - Tadanobu Nemoto
- Izumi Orthopaedic Hospital, 6-1, Maruyama, Kamiyagari, Izumi-ku, Sendai, Miyagi 981-3121, Japan
| | - Hisakazu Yano
- Department of Infection Control and Laboratory Diagnostics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Risako Kakuta
- Department of Otolaryngology, Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Hajime Kanamori
- Department of Infection Control and Laboratory Diagnostics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Shinya Inomata
- Department of Infection Control and Laboratory Diagnostics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Noriomi Ishibashi
- Department of Infection Control and Laboratory Diagnostics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Tetsuji Aoyagi
- Department of Infection Control and Laboratory Diagnostics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Masumitsu Hatta
- Department of Infection Control and Laboratory Diagnostics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Yoshiaki Gu
- Department of Infection Control and Laboratory Diagnostics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Miho Kitagawa
- Department of Infection Control and Laboratory Diagnostics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Mitsuo Kaku
- Department of Infection Control and Laboratory Diagnostics, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
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Anaerobic Spondylodiscitis due to Fusobacterium Species: A Case Report Review of the Literature. Case Rep Infect Dis 2015; 2015:759539. [PMID: 26000181 PMCID: PMC4426655 DOI: 10.1155/2015/759539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 04/16/2015] [Indexed: 11/17/2022] Open
Abstract
Spondylodiscitis caused by Fusobacterium species is rare. Most cases of spontaneous spondylodiscitis are caused by Staphylococcus aureus and most postoperative cases are caused by Staphylococcus aureus or coagulase-negative staphylococci. Escherichia coli is the most common Gram-negative organism causing spondylodiscitis. Fusobacterium species are unusual causes for anaerobic spondylodiscitis. We report the case of a patient with spontaneous L2-L3 spondylodiscitis, vertebral osteomyelitis, and epidural abscess caused by Fusobacterium species and review the literature for patients with Fusobacterium spondylodiscitis.
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Peng Q, Yang Y, Guo Y, Han Y. Analysis of Bacterial Diversity During Acetic Acid Fermentation of Tianjin Duliu Aged Vinegar by 454 Pyrosequencing. Curr Microbiol 2015; 71:195-203. [DOI: 10.1007/s00284-015-0823-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 03/01/2015] [Indexed: 11/30/2022]
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