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Beery J, Roberston K, Hynes A, Douglas A, Peters J, Freedle R, Chamberland R, Reilly K, Abate G. Campylobacter gastroenteritis and bacteremia in an asplenic patient with a recent history of Yersinia Enterocolitis: Case report and literature review. IDCases 2024; 36:e01984. [PMID: 38765799 PMCID: PMC11101928 DOI: 10.1016/j.idcr.2024.e01984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/30/2024] [Accepted: 05/04/2024] [Indexed: 05/22/2024] Open
Abstract
In this case report, we present a patient with a history of splenectomy and two recent hospital admissions for severe gastroenteritis with sepsis. The first hospital admission was for Yersinia enterocolitica and the second admission was for Campylobacter fetus gastroenteritis with bacteremia. During both admissions, the patient was treated with a prolonged course of antibiotics and later discharged with full recovery. In our review, we address the risk of enterocolitis in splenectomized patients.
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Affiliation(s)
- Jacob Beery
- Saint Louis University, School of Medicine, USA
| | | | - Ashley Hynes
- Saint Louis University, School of Medicine, USA
- SSM Health Care, USA
| | | | - John Peters
- Saint Louis University, School of Medicine, USA
| | | | | | | | - Getahun Abate
- Saint Louis University, School of Medicine, USA
- SSM Health Care, USA
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2
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Zerbato V, Di Bella S, Pol R, Luzzati R, Sanson G, Ambretti S, Andreoni S, Aschbacher R, Bernardo M, Bielli A, Brigante G, Busetti M, Camarlinghi G, Carcione D, Carducci A, Clementi N, Carretto E, Chilleri C, Codda G, Consonni A, Costantino V, Cortazzo V, Di Santolo M, Dodaro S, Fiori B, García-Fernández A, Foschi C, Gobbato E, Greco F, La Ragione RM, Mancini N, Maraolo AE, Marchese A, Marcuccio D, Marrollo R, Mauri C, Mazzariol A, Morroni G, Mosca A, Nigrisoli G, Pagani E, Parisio EM, Pollini S, Sarti M, Sorrentino A, Trotta D, Villa L, Vismara C, Principe L. Human Campylobacter spp. infections in Italy. Eur J Clin Microbiol Infect Dis 2024; 43:895-904. [PMID: 38472522 DOI: 10.1007/s10096-024-04803-0] [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: 12/10/2023] [Accepted: 03/07/2024] [Indexed: 03/14/2024]
Abstract
PURPOSE Campylobacter is a frequent cause of enteric infections with common antimicrobial resistance issues. The most recent reports of campylobacteriosis in Italy include data from 2013 to 2016. We aimed to provide national epidemiological and microbiological data on human Campylobacter infections in Italy during the period 2017-2021. METHODS Data was collected from 19 Hospitals in 13 Italian Regions. Bacterial identification was performed by mass spectrometry. Antibiograms were determined with Etest or Kirby-Bauer (EUCAST criteria). RESULTS In total, 5419 isolations of Campylobacter spp. were performed. The most common species were C. jejuni (n = 4535, 83.7%), followed by C. coli (n = 732, 13.5%) and C. fetus (n = 34, 0.6%). The mean age of patients was 34.61 years and 57.1% were males. Outpatients accounted for 54% of the cases detected. Campylobacter were isolated from faeces in 97.3% of cases and in 2.7% from blood. C. fetus was mostly isolated from blood (88.2% of cases). We tested for antimicrobial susceptibility 4627 isolates (85.4%). Resistance to ciprofloxacin and tetracyclines was 75.5% and 54.8%, respectively; resistance to erythromycin was 4.8%; clarithromycin 2% and azithromycin 2%. 50% of C. jejuni and C. coli were resistant to ≥ 2 antibiotics. Over the study period, resistance to ciprofloxacin and tetracyclines significantly decreased (p < 0.005), while resistance to macrolides remained stable. CONCLUSION Campylobacter resistance to fluoroquinolones and tetracyclines in Italy is decreasing but is still high, while macrolides retain good activity.
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Affiliation(s)
- Verena Zerbato
- Infectious Diseases Unit, Trieste University Hospital (ASUGI), Trieste, Italy.
| | - Stefano Di Bella
- Clinical Department of Medical, Surgical and Health Sciences, Trieste University, Trieste, Italy
| | - Riccardo Pol
- Infectious Diseases Unit, Trieste University Hospital (ASUGI), Trieste, Italy
| | - Roberto Luzzati
- Clinical Department of Medical, Surgical and Health Sciences, Trieste University, Trieste, Italy
| | - Gianfranco Sanson
- Clinical Department of Medical, Surgical and Health Sciences, Trieste University, Trieste, Italy
| | - Simone Ambretti
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Stefano Andreoni
- Laboratory of Microbiology and Virology, Azienda Ospedaliero Universitaria Maggiore Della Carità, Corso Mazzini 18, Novara, Italy
| | - Richard Aschbacher
- Laboratorio Aziendale Di Microbiologia E Virologia, Comprensorio Sanitario Di Bolzano, Azienda Sanitaria Dell'Alto Adige, Bolzano, Italy
| | - Mariano Bernardo
- Microbiology Unit, AORN Ospedali Dei Colli-Monaldi Hospital, Naples, Italy
| | - Alessandra Bielli
- Clinical Microbiology Unit, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Gioconda Brigante
- Clinical Pathology Laboratory, ASST Valle Olona, Busto Arsizio, Italy
| | - Marina Busetti
- Microbiology Unit, Trieste University Hospital (ASUGI), Trieste, Italy
| | - Giulio Camarlinghi
- Microbiology Analysis Unit, San Donato Hospital, USL Toscana Sud Est, Arezzo, Italy
| | - Davide Carcione
- Clinical Pathology Laboratory, ASST Valle Olona, Busto Arsizio, Italy
| | | | - Nicola Clementi
- Laboratory of Microbiology and Virology at Vita-Salute San Raffaele University, Milan, Italy
- Laboratory of Medical Microbiology and Virology, IRCCS San Raffaele Hospital, Milan, Italy
| | - Edoardo Carretto
- Clinical Microbiology Laboratory, IRCCS Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Chiara Chilleri
- Microbiology and Virology Unit, Careggi University Hospital, Florence, Italy
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Giulia Codda
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
| | - Alessandra Consonni
- Clinical Microbiology and Virology Unit, "A. Manzoni" Hospital, Lecco, Italy
| | - Venera Costantino
- Microbiology Unit, Trieste University Hospital (ASUGI), Trieste, Italy
| | - Venere Cortazzo
- Dipartimento Di Scienze Biotecnologiche Di Base, Cliniche Intensivologiche E Perioperatorie, Università Cattolica del Sacro Cuore, Rome, Italy
- Microbiology and Diagnostic Immunology Unit, Department of Diagnostic and Laboratory Medicine, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Saveria Dodaro
- Microbiology and Virology Unit, "Annunziata" Hospital of Cosenza, Cosenza, Italy
| | - Barbara Fiori
- Dipartimento Di Scienze Di Laboratorio E Infettivologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | | | - Claudio Foschi
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Elisa Gobbato
- Laboratory of Microbiology and Virology, Azienda Ospedaliero Universitaria Maggiore Della Carità, Corso Mazzini 18, Novara, Italy
| | - Francesca Greco
- Microbiology and Virology Unit, "Annunziata" Hospital of Cosenza, Cosenza, Italy
| | - Roberto Marcello La Ragione
- School of Veterinary Medicine, University of Surrey, Guildford, UK
- School of Biosciences, University of Surrey, Guildford, UK
| | - Nicasio Mancini
- Laboratory of Medical Microbiology and Virology, Department of Medicine and Technological Innovation, University of Insubria, Varese, Italy
- Laboratory of Medical Microbiology and Virology, Fondazione Macchi University Hospital, Varese, Italy
| | | | - Anna Marchese
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, Genoa, Italy
- Microbiology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Daniela Marcuccio
- Microbiology and Virology Unit, Great Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
| | - Roberta Marrollo
- Clinical Microbiology Laboratory, IRCCS Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Carola Mauri
- Clinical Microbiology and Virology Unit, "A. Manzoni" Hospital, Lecco, Italy
| | - Annarita Mazzariol
- Microbiology and Virology Unit, Department of Pathology, Azienda Ospedaliera Universitaria Integrata Di Verona, Verona, Italy
| | - Gianluca Morroni
- Microbiology Unit, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Adriana Mosca
- Interdisciplinary Department of Medicine (DIM), University of Bari "Aldo Moro", Policlinico, Bari, Italy
| | - Giacomo Nigrisoli
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria Di Bologna, Bologna, Italy
| | - Elisabetta Pagani
- Laboratorio Aziendale Di Microbiologia E Virologia, Comprensorio Sanitario Di Bolzano, Azienda Sanitaria Dell'Alto Adige, Bolzano, Italy
| | - Eva Maria Parisio
- Microbiology Analysis Unit, San Donato Hospital, USL Toscana Sud Est, Arezzo, Italy
| | - Simona Pollini
- Microbiology and Virology Unit, Careggi University Hospital, Florence, Italy
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Mario Sarti
- Clinical Microbiology and Virology Unit, AOU Policlinico, Modena, Italy
| | - Annarita Sorrentino
- Microbiology and Virology Unit, Department of Pathology, Azienda Ospedaliera Universitaria Integrata Di Verona, Verona, Italy
| | - Domenico Trotta
- Microbiology Unit, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Laura Villa
- Department of Infectious Diseases, Istituto Superiore Di Sanità, Rome, Italy
| | - Chiara Vismara
- Clinical Microbiology Unit, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Luigi Principe
- Microbiology and Virology Unit, Great Metropolitan Hospital "Bianchi-Melacrino-Morelli", Reggio Calabria, Italy
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Kirk KF, Boel J, Nielsen HL. Vertebral osteomyelitis caused by Campylobacter jejuni in an immunocompetent patient. Gut Pathog 2023; 15:61. [PMID: 38037181 PMCID: PMC10688457 DOI: 10.1186/s13099-023-00589-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/21/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Campylobacter jejuni is the leading cause of human bacterial gastroenteritis worldwide. However, systemic infection with C. jejuni is uncommon, and osteomyelitis caused by C. jejuni is extremely rare. Cultivation from spinal bone biopsies has not previously been reported in the literature. CASE PRESENTATION A 79-year-old immunocompetent male was admitted to the emergency department at Aalborg University Hospital in Denmark with lower back pain, fever and diarrhoea. A FecalSwab obtained upon admission was PCR-positive for Campylobacter spp, while an aerobic blood culture bottle was positive for C. jejuni (Time to detection: 70.4 h). A MRI of columna totalis showed osteomyelitis at L1/L2 with an epidural abscess from L1 to L2 with compression of the dura sack. The patient underwent spinal surgery with spondylodesis and decompression of L1/L2. The surgery was uncomplicated and the discus material was also culture positive for C. jejuni. The patient was treated with meropenem for a total duration of four weeks, followed by four weeks of oral treatment with clindamycin in tapered dosage. The patient recovered quickly following surgery and targeted antibiotic treatment with decreasing lumbar pain and biochemical response and was fully recovered at follow-up three months after end of treatment. CONCLUSIONS While C. jejuni osteomyelitis is rare, it should still be suspected as a possible causative bacterial aetiology in patients with vertebral osteomyelitis, in particular when symptoms of diarrhoea is involved in the clinical presentation. Susceptibility testing is crucial due to emerging resistance, and targeted treatment strategies should rely upon such tests.
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Affiliation(s)
- Karina Frahm Kirk
- Department of Infectious Diseases, Aalborg University Hospital, Aalborg, 9000, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Jeppe Boel
- Department for Bacteria, Parasites & Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Hans Linde Nielsen
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.
- Department of Clinical Microbiology, Aalborg University Hospital, Hobrovej 18, Aalborg, 9000, Denmark.
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Zayet S, Klopfenstein T, Gendrin V, Vuillemenot JB, Plantin J, Toko L, Sreiri N, Royer PY. Campylobacter fetus Invasive Infections and Risks for Death, France, 2000-2021. Emerg Infect Dis 2023; 29. [PMID: 37877803 PMCID: PMC10617355 DOI: 10.3201/eid2911.230598] [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] [Indexed: 10/26/2023] Open
Abstract
Campylobacter fetus accounts for 1% of Campylobacter spp. infections, but prevalence of bacteremia and risk for death are high. To determine clinical features of C. fetus infections and risks for death, we conducted a retrospective observational study of all adult inpatients with a confirmed C. fetus infection in Nord Franche-Comté Hospital, Trevenans, France, during January 2000-December 2021. Among 991 patients with isolated Campylobacter spp. strains, we identified 39 (4%) with culture-positive C. fetus infections, of which 33 had complete records and underwent further analysis; 21 had documented bacteremia and 12 did not. Secondary localizations were reported for 7 (33%) patients with C. fetus bacteremia, of which 5 exhibited a predilection for vascular infections (including 3 with mycotic aneurysm). Another 7 (33%) patients with C. fetus bacteremia died within 30 days. Significant risk factors associated with death within 30 days were dyspnea, quick sequential organ failure assessment score >2 at admission, and septic shock.
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Coustillères F, Hanoy M, Lemée L, Le Roy F, Bertrand D. Campylobacter fetus bacteremia complicated by multiple splenic abscesses and multivisceral signs in a renal transplant recipient: a case report and review of the literature. Braz J Infect Dis 2022; 26:102336. [PMID: 35227664 PMCID: PMC9387491 DOI: 10.1016/j.bjid.2022.102336] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 02/07/2022] [Indexed: 11/16/2022] Open
Abstract
We report a rare case of Campylobacter fetus bacteremia in a 50-year-old woman following kidney transplantation. Bacteremia was complicated by multivisceral signs such as multiple splenic abscesses, bacterial hepatitis, erythema nodosum and reactive arthritis. Despite a prolonged diagnostic delay, the diagnosis was made on blood culture identification and the global outcome was favorable with adequate antibiotherapy. Reports in the literature describe a high rate of mortality for Campylobacter spp. septicemia, with most patients being immunocompromised. However, Campylobacter spp. has been rarely described in renal transplant patients. Moreover, a splenic septic localization due to Campylobacter spp. has been reported only once to our knowledge. Clinicians should be aware of the diagnostic difficulties related to the frequent negativity of stool samples in C. fetus septicemia, in order to implement a tailored medical strategy. Some data suggest that rapid introduction of adapted antibiotic therapy is associated with a reduction in mortality.
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Pena-Fernández N, Cano-Terriza D, García-Bocanegra I, Horcajo P, Vázquez-Arbaizar P, Cleofé-Resta D, Pérez-Arroyo B, Ortega-Mora LM, Collantes-Fernández E. Prevalence of Bovine Genital Campylobacteriosis, Associated Risk Factors and Spatial Distribution in Spanish Beef Cattle Based on Veterinary Laboratory Database Records. Front Vet Sci 2021; 8:750183. [PMID: 34957276 PMCID: PMC8692666 DOI: 10.3389/fvets.2021.750183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 11/15/2021] [Indexed: 12/04/2022] Open
Abstract
Bovine genital campylobacteriosis (BGC) is a sexually transmitted disease that causes early reproductive failure in natural breeding cattle that are managed extensively. The aim of this study was to assess the BGC prevalence in Spain from 2011 to 2019 using data collected cross-sectionally from the diagnostic reports issued by the SALUVET veterinary diagnostic laboratory from a total of 5,182 breeding bulls from 1,950 herds managed under “dehesa” systems (large herds within fenced pastures and all-year breeding season) or mountain systems (smaller herds with seasonal breeding management and grazing in communal mountain pastures). Infection was detected by PCR in 7.7 and 12.2% of the bulls and herds tested, respectively. The “dehesa” herd management system (OR = 2.078, P = < 0.001, 95% CI = 1.55–1.77), bovine trichomonosis status of the herd (OR = 1.606, P = 0.004, 95% CI = 1.15–2.22), and bulls ≥3 years old (OR = 1.392, P = 0.04, 95% CI = 1.01–1.92) were identified as risk factors associated with Campylobacter fetus venerealis infection. We also studied the high-risk areas for circulation of the infection in extensive beef cattle herds in Spain, showing four significant clusters in “dehesa” areas in the south-western provinces of the country and a fifth cluster located in a mountain area in northern Spain. The results obtained in the present study indicate that BGC is endemic and widely distributed in Spanish beef herds. Specifically, “dehesa” herds are at greater risk for introduction of Cfv based on relatively high local prevalence of the infection and the use of specific management practices.
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Affiliation(s)
- Nerea Pena-Fernández
- Servicio Regional de Investigación y Desarrollo Agroalimentario, Villaviciosa, Spain.,Animal Health and Zoonoses Group (SALUVET), Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - David Cano-Terriza
- Animal Health and Zoonosis Research Group (GISAZ), Animal Health Department, Faculty of Veterinary Sciences, University of Cordoba-Agrifood Excellence International Campus (ceiA3), Córdoba, Spain
| | - Ignacio García-Bocanegra
- Animal Health and Zoonosis Research Group (GISAZ), Animal Health Department, Faculty of Veterinary Sciences, University of Cordoba-Agrifood Excellence International Campus (ceiA3), Córdoba, Spain
| | - Pilar Horcajo
- Animal Health and Zoonoses Group (SALUVET), Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Patricia Vázquez-Arbaizar
- Animal Health and Zoonoses Group (SALUVET)-Innova S.L. Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Darío Cleofé-Resta
- Animal Health and Zoonoses Group (SALUVET), Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Bárbara Pérez-Arroyo
- Animal Health and Zoonoses Group (SALUVET), Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Luis M Ortega-Mora
- Animal Health and Zoonoses Group (SALUVET), Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain.,Animal Health and Zoonoses Group (SALUVET)-Innova S.L. Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
| | - Esther Collantes-Fernández
- Animal Health and Zoonoses Group (SALUVET), Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain.,Animal Health and Zoonoses Group (SALUVET)-Innova S.L. Faculty of Veterinary Sciences, Complutense University of Madrid, Madrid, Spain
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Seong YJ, Lee SH, Kim EJ, Choi YH, Kim TJ, Lee WG, Heo JY. Campylobacter fetus subspecies venerealis meningitis associated with a companion dog in a young adult: a case report. BMC Infect Dis 2021; 21:1280. [PMID: 34961472 PMCID: PMC8711199 DOI: 10.1186/s12879-021-07007-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 12/22/2021] [Indexed: 11/16/2022] Open
Abstract
Background Campylobacter spp., common commensals in the gastrointestinal tract of animals, especially poultry, can cause acute gastrointestinal illness in humans through animal-to-human transmission. Although Campylobacter fetus, especially subspecies fetus, rarely leads to systemic infections such as bacteremia in immunocompromised patients, it is unclear whether Campylobacter fetus subspecies venerealis (Cfv) causes infectious diseases in humans. Case presentation A 28-year-old man with a history of chronic alcoholism visited the emergency department with weakness of the left extremities. The patient was clinically diagnosed with community-acquired bacterial meningitis. The organism from the blood culture was subsequently identified as Campylobacter fetus. On phylogenetic analysis, the 16S rRNA sequence showed 99.93% similarity with other Cfv 16S rRNA sequences. The patient had no exposure to identifiable sources except for close contact with a companion dog, which could have been a possible source of transmission. Conclusions This case suggests that Cfv could lead to human systemic infections such as meningitis and that companion animals, in addition to well-known animal hosts, could be sources of transmission. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-021-07007-5.
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Affiliation(s)
- Yeol Jung Seong
- Department of Infectious Diseases, Ajou University School of Medicine, 164 Worldcup-ro, Youngtong-gu, Suwon, Gyeonggi-do, 16499, Republic of Korea
| | - Seung Hun Lee
- Division of Infectious Disease Diagnosis Control, Honam Regional Center for Disease Control and Prevention, Korea Disease Control and Prevention Agency, Gwangju, Republic of Korea
| | - Eun Jin Kim
- Department of Infectious Diseases, Ajou University School of Medicine, 164 Worldcup-ro, Youngtong-gu, Suwon, Gyeonggi-do, 16499, Republic of Korea
| | - Young Hwa Choi
- Department of Infectious Diseases, Ajou University School of Medicine, 164 Worldcup-ro, Youngtong-gu, Suwon, Gyeonggi-do, 16499, Republic of Korea
| | - Tae-Joon Kim
- Department of Neurology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Wee Gyo Lee
- Department of Laboratory Medicine, Ajou University School of Medicine, 164 Worldcup-ro, Youngtong-gu, Suwon, Gyeonggi-do, 16499, Republic of Korea.
| | - Jung Yeon Heo
- Department of Infectious Diseases, Ajou University School of Medicine, 164 Worldcup-ro, Youngtong-gu, Suwon, Gyeonggi-do, 16499, Republic of Korea.
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Chien YC, Huang YT, Liao CH, Chien JY, Hsueh PR. Clinical characteristics of bacteremia caused by Haemophilus and Aggregatibacter species and antimicrobial susceptibilities of the isolates. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2021; 54:1130-1138. [PMID: 33390332 DOI: 10.1016/j.jmii.2020.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/13/2020] [Accepted: 12/14/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND/PURPOSE This study aimed to investigate the clinical characteristics and outcomes of bacteremia caused by Haemophilus and Aggregatibacter species in patients who were treated at a medical center between 2006 and 2018. METHODS Haemophilus and Aggregatibacter isolates were identified up to the species level using Bruker Biotyper MALDI-TOF analysis and ancillary 16S rRNA gene sequencing analysis (in case of ambiguity). Clinical characteristics and outcomes of patients with bacteremia caused by these organisms were evaluated. RESULTS Sixty-five Haemophilus and Aggregatibacter species isolates causing bacteremia were identified from nonduplicated patients, including 51 (78.5%) Haemophilus influenzae, 6 (9.2%) Haemophilus parainfluenzae, 1 (1.5%) Haemophilus haemolyticus, 3 (4.6%) A. aphrophilus, and 4 (6.2%) A. segnis. Hospital mortality was observed in 18 (28.1%) of 64 patients with bacteremia caused by Haemophilus (n = 57) and Aggregatibacter species (n = 7). The majority of patients with bacteremia had community-acquired disease with low severity. The average Sequential Organ Failure Assessment (SOFA) score was low (4.4 ± 4.7). But, a higher SOFA score (adjusted odds ratio 2.5, 95% confidence interval 1.22-5.12; P = 0.01) was an independent factor predicting poor 7-day clinical outcomes in patients with community-acquired H. influenzae bacteremia (n = 39). CONCLUSIONS The overall hospital mortality of 28.1% was observed among patients with bacteremia due to Haemophilus and Aggregatibacter species. A higher SOFA score was and independent predictor of poor 7-day clinical outcomes in patients with community-acquired H. influenzae bacteremia.
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Affiliation(s)
- Ying-Chun Chien
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yu-Tsung Huang
- Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan; Division of Infectious Diseases, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Chun-Hsing Liao
- Division of Infectious Diseases, Far Eastern Memorial Hospital, New Taipei City, Taiwan; Department of Medicine, Yang-Ming University, Taipei, Taiwan
| | - Jung-Yien Chien
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Po-Ren Hsueh
- Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Laboratory Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei, Taiwan.
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9
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Tinévez C, Velardo F, Ranc AG, Dubois D, Pailhoriès H, Codde C, Join-Lambert O, Gras E, Corvec S, Neuwirth C, Melenotte C, Dorel M, Lagneaux AS, Pichon M, Doat V, Fournier D, Lemaignen A, Bouard L, Patoz P, Hery-Arnaud G, Lemaitre N, Couzigou C, Guillard T, Recalt E, Bille E, Belaroussi Y, Neau D, Cazanave C, Lehours P, Puges M. Retrospective multicentric study on Campylobacter spp. bacteremia in France: the Campylobacteremia study. Clin Infect Dis 2021; 75:702-709. [PMID: 34849656 DOI: 10.1093/cid/ciab983] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Campylobacter spp. bacteremia is a severe infection. A nationwide 5-year retrospective study was conducted to characterize its clinical features and prognostic factors. METHODS Patients diagnosed with Campylobacter spp. bacteremia in 37 French hospitals participating in the surveillance network of the National Reference Center for Campylobacter and Helicobacter were included from January 1, 2015, to December 31, 2019. The goal was to analyze the effects of a delay of appropriate antibiotic therapy and other risk factors on 30-day mortality, antibiotic resistance, patient characteristics and prognosis according to the Campylobacter species. FINDINGS Among the 592 patients, Campylobacter jejuni and Campylobacter fetus were the most commonly identified species (42.9 and 42.6%, respectively). The patients were elderly (median age 68 years), and most had underlying conditions, mainly immunodepression (43.4%), hematologic malignancies (25.9%), solid neoplasms (23%) and diabetes (22.3%). C. jejuni and Campylobacter coli were associated with gastrointestinal signs, and C. fetus was associated with secondary localizations. Among the 80 patients (13.5%) with secondary localizations, 12 had endocarditis, 38 vascular, 24 osteo-articular and 9 ascitic fluid infections. The thirty-day mortality rate was 11.7%, and an appropriate antibiotic treatment was independently associated with 30-day survival (odds ratio [OR]=0.47, 95% CI [0.24-0.93], p=0.03). The median efficient therapy initiation delay was quite short (2 days, IQR [0-4]) but it had no significant impact on 30-day mortality (p=0.78). INTERPRETATION Campylobacter spp. bacteremia mainly occurred in elderly immunocompromised individuals with variable clinical presentations according to the species involved. Appropriate antimicrobial therapy was associated with improved 30-day survival.
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Affiliation(s)
- Claire Tinévez
- CHU de Bordeaux, Infectious and Tropical Diseases Department, F-33000 Bordeaux, France
| | - Fanny Velardo
- INSERM, Bordeaux Population Health Research Center, ISPED, University of Bordeaux, F-33000 Bordeaux, France
| | - Anne-Gaëlle Ranc
- CHU de Lyon Sud, Bacteriology Department, F-69310 Pierre-Bénite, France
| | - Damien Dubois
- CHU de Toulouse, Bacteriology Department, F-31059 Toulouse, France
| | | | - Cyrielle Codde
- CHU de Limoges, Infectious and Tropical Diseases Department, F-87000 Limoges, France
| | | | - Emmanuelle Gras
- Hôpital Européen Georges-Pompidou, Infectious and Tropical Diseases Department, F-75015 Paris, France
| | - Stéphane Corvec
- CHU de Nantes, Bacteriology Department, F-44093 Nantes, France
| | | | - Cléa Melenotte
- CHU de Marseille, Bacteriology Department, F-13005 Marseille, France
| | - Marie Dorel
- CHU de Rennes, Infectious Diseases and Intensive Care Department, F-35033 Rennes, France
| | | | - Maxime Pichon
- CHU de Poitiers, Infectious Agents Department, Bacteriology, F-86021 Poitiers, France
| | - Violaine Doat
- CH Pierre Oudot, Biology Department, F-38300 Bourguoin-Jallieu, France
| | - Damien Fournier
- CHU de Besançon, Bacteriology Department, F-25000 Besançon, France
| | - Adrien Lemaignen
- CHRU de Tours, Infectious and Tropical Diseases Department, F-37000 Tours, France
| | - Leslie Bouard
- CHD Vendée, Biology Department, F-85000 La Roche-Sur-Yon, France
| | - Pierre Patoz
- CH de Tourcoing, Biology Department, F-59208 Tourcoing, France
| | | | - Nadine Lemaitre
- CHU d'Amiens, Bacteriology Department, F-80000 Amiens, France
| | | | - Thomas Guillard
- CHU de Reims, Bacteriology Department, F-51092 Reims, France
| | - Elise Recalt
- CHU de Strasbourg, Bacteriology Department, F-67200 Strasbourg, France
| | - Emmanuelle Bille
- CH Necker-Enfants malades, Bacteriology Department, F-75015 Paris, France
| | - Yaniss Belaroussi
- INSERM, Bordeaux Population Health Research Center, ISPED, University of Bordeaux, F-33000 Bordeaux, France
| | - Didier Neau
- CHU de Bordeaux, Infectious and Tropical Diseases Department, F-33000 Bordeaux, France
| | - Charles Cazanave
- CHU de Bordeaux, Infectious and Tropical Diseases Department, F-33000 Bordeaux, France
| | - Philippe Lehours
- CHU de Bordeaux, National Reference Center for Campylobacter and Helicobacter, Bacteriology Department, F-33000 Bordeaux, France.,Univ. Bordeaux, INSERM, UMR1053 Bordeaux Research in Translational Oncology, BaRITOn, 33076, Bordeaux, France
| | - Mathilde Puges
- CHU de Bordeaux, Infectious and Tropical Diseases Department, F-33000 Bordeaux, France
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10
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Clinical and molecular epidemiology of human listeriosis in Taiwan. Int J Infect Dis 2021; 104:718-724. [PMID: 33515776 DOI: 10.1016/j.ijid.2021.01.056] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE To determine serogroups, multilocus sequence typing (MLST) of Listeria monocytogenes isolates and analyze clinical characteristics of these clones focusing on non-perinatal cases. METHODS From 2000 to 2015, we analyzed 123 human listeriosis cases at a medical center in northern Taiwan using PCR serogrouping, MLST, and clinical presentations. RESULTS The annual incidence of listeriosis increased since 2005 with a peak in 2008 (0.2 per 1000 admission) and decreased thereafter. Of the 115 non-perinatal listeriosis cases, we found a male predominance (60%) with an average age of 63.9 years old (standard deviation: 15.3 years), and almost all patients had underlying conditions including malignancies (61.7%), steroid usage (39.1%), diabetes mellitus (31.3%), renal insufficiency (27.8%), and liver cirrhosis (17.4%). Clinical presentations included bacteremia (74.8%), neurolisteriosis (20.0%), and spontaneous bacterial peritonitis (5.2%). The most frequently identified serogroup-sequence types (ST) were IIB-ST87 (30.9%), followed by IIA-ST378 (16.3%) and IIA-ST155 (14.6%). The 30-day all-cause mortality of non-perinatal listeriosis was 25.2% and was associated with age (Hazard ratio: 1.04, 95% C.I. = 1.01-1.07, p = 0.021), steroid usage (Hazard ratio: 2.54, 95% C.I. = 1.06-6.11, p = 0.038) and respiratory distress at presentation (Hazard ratio: 2.59, 95% C.I. = 1.05-6.39, p = 0.038); while no association was found with serogroups (IIA, IIB, and IVB) or three major ST types by multivariable analysis. All 8 mothers of perinatal listeriosis patients survived and three neonates died (mortality, 37.5%), and IIB-ST87 was the major type (62.5%). CONCLUSION Predominant strains in Taiwan could cause significant morbidity and mortality. Further disease monitoring and source surveillance are warranted despite a declining trend of human listeriosis in Taiwan.
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11
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Schiaffino F, Kosek MN. Intestinal and Extra-Intestinal Manifestations of Campylobacter in the Immunocompromised Host. CURRENT TREATMENT OPTIONS IN INFECTIOUS DISEASES 2020. [DOI: 10.1007/s40506-020-00243-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Wang CH, Tai TH, Weng SY, Yeh SW, Shiue SJ, Jargalsaikhan G, Wu MS. Spontaneous bacterial peritonitis caused by Campylobacter Coli in cirrhotic patient: A rare case report (CARE-compliant). Medicine (Baltimore) 2020; 99:e19887. [PMID: 32481254 PMCID: PMC7249951 DOI: 10.1097/md.0000000000019887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION Spontaneous bacterial peritonitis (SBP) is a fatal infection in patients. It often happens in patients with cirrhosis, cancer or diabetes, and is caused mostly by Enterobacteriaceae. Here we report a rare case of SBP caused by Campylobacter Coli (C coli) infection, which was identified promptly by the matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) and received adequate therapy sooner after. PATIENT CONCERNS In the present study, we reported a 46-year-old male with alcoholic liver cirrhosis (Child-Pugh class C) and type 2 diabetes mellitus presented with a 1-day history of fever and abdominal pain. DIAGNOSIS Based on the clinical examinations, the patient was diagnosed with SBP and the pathogen was quickly identified as C coli by the matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS), a rare causative pathogen of SBP. INTERVENTIONS The patient received a 10-day antibiotic treatment with Ciprofloxacin 400 mg every 12 hours, and recovered successfully. OUTCOMES The patient had a successful treatment outcome. CONCLUSION The study demonstrated a new possible infectious cause of SBP by C Coli, which was rarely seen in liver cirrhosis but mostly found in immunocompromised patients. Thus, it might raise an idea of microorganism screening of broader types that might also induce SBP for immunocompromised patients.
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Affiliation(s)
- Cheng-Hui Wang
- Department of Laboratory Medicine, Wan Fang Hospital
- School of Medical Laboratory Science and Technology
| | - Ting-Han Tai
- Department of Primary Care Medicine, Shuang Ho Hospital
- Department of Orthopedics, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Shih-Yen Weng
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Research Center for Healthcare Industry Innovation, National Taipei University of Nursing and Health Sciences
| | - Shin-Wen Yeh
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Sheng-Jie Shiue
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | | | - Ming-Shun Wu
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- International PhD program in Medicine, College of Medicine, Taipei Medical University
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei
- Integrative Therapy Center for Gastroenterologic Cancers, Wan Fang Hospital, Taipei Medical University, Taipei
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13
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Chisanga M, Linton D, Muhamadali H, Ellis DI, Kimber RL, Mironov A, Goodacre R. Rapid differentiation of Campylobacter jejuni cell wall mutants using Raman spectroscopy, SERS and mass spectrometry combined with chemometrics. Analyst 2020; 145:1236-1249. [DOI: 10.1039/c9an02026h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
SERS was developed for intercellular and intracellular analyses. Using a series of cell wall mutants in C. jejuni we show cell wall versus cytoplasm differences.
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Affiliation(s)
- Malama Chisanga
- School of Chemistry
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
| | - Dennis Linton
- School of Biological Sciences
- Faculty of Biology
- Medicine and Health
- University of Manchester
- Manchester
| | - Howbeer Muhamadali
- Department of Biochemistry
- Institute of Integrative Biology
- University of Liverpool
- Liverpool
- UK
| | - David I. Ellis
- School of Chemistry
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
| | - Richard L. Kimber
- Department of Earth and Environmental Sciences
- University of Manchester
- Manchester
- UK
| | - Aleksandr Mironov
- EM Core Facility
- Faculty of Biology
- Medicine and Health
- University of Manchester
- Manchester
| | - Royston Goodacre
- Department of Biochemistry
- Institute of Integrative Biology
- University of Liverpool
- Liverpool
- UK
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14
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Lynch C, O'Connor JA, O'Brien D, Vaughan C, Bolton D, Coffey A, Lucey B. First reported detection of biofilm formation by Campylobacter fetus during investigation of a case of prosthetic valve endocarditis. J Clin Pathol 2019; 72:554-557. [PMID: 31055471 DOI: 10.1136/jclinpath-2018-205677] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/13/2019] [Accepted: 04/15/2019] [Indexed: 02/03/2023]
Abstract
AIMS Campylobacter fetus subsp fetus (CFF) can cause intestinal illness, particularly in immunocompromised humans, with the potential to cause severe systemic infections. CFF is a zoonotic pathogen with a broad host range among farm animals and humans, inducing abortion in sheep and cows. The current paper describes a strain of CFF isolated from a patient with prosthetic valve endocarditis in Mercy University Hospital, Cork, Ireland, during 2017. Only five cases of C. fetus as a cause of prosthetic valve endocarditis have been reported in the literature, with no reports of biofilm formation within the species. METHODS The aetiological strain was speciated and subspeciated by the VITEK 2 NH card and matrix-assisted laser desorption ionisation time-of-flight mass spectrometry. CFF biofilm formation was analysed using a crystal violet staining method. C. jejuni National Collection of Type Cultures (NCTC) 11168 was used as a positive control organism. Strains were incubated statically in Mueller-Hinton broth and Mueller-Hinton broth supplemented with 0.025% sodium deoxycholate for 3 and 7 days at 37°C, microaerobically. RESULTS The CFF strain formed stronger attached biofilms on polystyrene plates on day 3 (72 hours) than the C. jejuni NCTC 11168 control strain, but were weaker than the control strain on day 7 in Mueller-Hinton broth. Monoculture of this C. fetus isolate was found to exist in three defined forms of biofilms (attached, air-liquid interface and floccules). CONCLUSIONS This clinically significant C. fetus isolate showed considerable biofilm-forming capability, which we suggest conferred a survivalist advantage, contributing to the genesis of infective prosthetic valve endocarditis.
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Affiliation(s)
- Caoimhe Lynch
- Biological Sciences, Cork Institute of Technology, Cork, Cork, Ireland
| | | | | | - Carl Vaughan
- Cardiology, Mercy University Hospital, Cork, Ireland
| | | | - Aidan Coffey
- Biological Sciences, Cork Institute of Technology, Cork, Cork, Ireland
| | - Brigid Lucey
- Biological Sciences, Cork Institute of Technology, Cork, Cork, Ireland
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15
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Olaiya D, Fok R, Chakrabarti P, Sharma H, Greig J. Campylobacter fetus spondylodiscitis: A case report and review of the literature. IDCases 2018; 14:e00468. [PMID: 30479962 PMCID: PMC6251783 DOI: 10.1016/j.idcr.2018.e00468] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 11/07/2018] [Accepted: 11/07/2018] [Indexed: 11/24/2022] Open
Abstract
Campylobacter are common zoonotic food borne pathogens but infrequent causes of disseminated human infection. Campylobacter fetus is an unusual cause of human infection and spondylodiscitis. We describe a case of C. fetus infection in a 72-year-old woman who presented with indolent onset lumbar spondylodiscitis. The literature is reviewed and the presentation of spondylodiscitis is contrasted with the usual aggressive nature of bacteremia with this pathogen.
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Affiliation(s)
- Daniel Olaiya
- Department of Neurosurgery, University Hospitals Plymouth NHS Trust, Derriford Hospital, Plymouth PL6 8DH, UK
| | - Rosemary Fok
- Department of Microbiology, University Hospitals Plymouth NHS Trust, Derriford Hospital, Plymouth PL6 8DH, UK
| | - Prithwiraj Chakrabarti
- Department of Microbiology, Royal Cornwall Hospital NHS Trust, Treliske, Truro TR1 3LQ, UK
| | - Himanshu Sharma
- Department of Neurosurgery, University Hospitals Plymouth NHS Trust, Derriford Hospital, Plymouth PL6 8DH, UK
| | - James Greig
- Department of Microbiology, University Hospitals Plymouth NHS Trust, Derriford Hospital, Plymouth PL6 8DH, UK
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16
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Wu PW, Wang CC. Concurrent Campylobacter jejuni bacteremia and intussusception in an immunocompetent five-year-old child. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2018; 52:367-369. [PMID: 30293925 DOI: 10.1016/j.jmii.2018.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 09/18/2018] [Indexed: 11/30/2022]
Abstract
Bacterial enteritis has been reported to be a risk factor for childhood intussusception. However, no case report concerning children with concurrent Campylobactor bacteremia and intussusception were found in the literature. Herein, we report a 5-year-old male preschool child who presented symptoms of infectious diarrhea, and ileocecal type intussuscepton and Campylobactor jejuni bacteremia were found after a series of investigations.
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Affiliation(s)
- Po-Wei Wu
- Department of Pediatrics, Tri-Service General Hospital, National Defense Medical Center, No. 325, Sec. 2, Cheng-Kung road, Neihu, Taipei, Taiwan.
| | - Chih-Chien Wang
- Department of Pediatrics, Tri-Service General Hospital, National Defense Medical Center, No. 325, Sec. 2, Cheng-Kung road, Neihu, Taipei, Taiwan.
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17
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Liu F, Ma R, Wang Y, Zhang L. The Clinical Importance of Campylobacter concisus and Other Human Hosted Campylobacter Species. Front Cell Infect Microbiol 2018; 8:243. [PMID: 30087857 PMCID: PMC6066527 DOI: 10.3389/fcimb.2018.00243] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/25/2018] [Indexed: 12/14/2022] Open
Abstract
Historically, Campylobacteriosis has been considered to be zoonotic; the Campylobacter species that cause human acute intestinal disease such as Campylobacter jejuni and Campylobacter coli originate from animals. Over the past decade, studies on human hosted Campylobacter species strongly suggest that Campylobacter concisus plays a role in the development of inflammatory bowel disease (IBD). C. concisus primarily colonizes the human oral cavity and some strains can be translocated to the intestinal tract. Genome analysis of C. concisus strains isolated from saliva samples has identified a bacterial marker that is associated with active Crohn's disease (one major form of IBD). In addition to C. concisus, humans are also colonized by a number of other Campylobacter species, most of which are in the oral cavity. Here we review the most recent advancements on C. concisus and other human hosted Campylobacter species including their clinical relevance, transmission, virulence factors, disease associated genes, interactions with the human immune system and pathogenic mechanisms.
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Affiliation(s)
- Fang Liu
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Rena Ma
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Yiming Wang
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Li Zhang
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
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