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Nurjadi D, Tkadlec J, Boutin S, Vandenesch F. Editorial: "Omics"- revolution in elucidating the virulence and resistance in Staphylococcus aureus. Front Cell Infect Microbiol 2023; 13:1209671. [PMID: 37265498 PMCID: PMC10230050 DOI: 10.3389/fcimb.2023.1209671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 05/10/2023] [Indexed: 06/03/2023] Open
Affiliation(s)
- Dennis Nurjadi
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - Jan Tkadlec
- Department of Medical Microbiology, Charles University, 2nd Faculty of Medicine and Motol University Hospital, Prague, Czechia
| | - Sébastien Boutin
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - François Vandenesch
- CIRI, Centre International de Recherche en Infectiologie, Université de Lyon, Inserm, U1111, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS), UMR5308, École Normale Supérieure (ENS) de Lyon, Lyon, France
- Centre National de Référence des Staphylocoques, Institut des Agents Infectieux, Hospices Civils de Lyon, Lyon, France
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Capasso L, Cerullo J, Lo Vecchio A, Coppola C, Lepore L, Marra V, Antonaki E, Raimondi F. An unusual aggressive presentation of late onset sepsis due to Staphylococcus aureus MRSA producing Panton-Valentine Leukocidin in preterm neonate. Acta Biomed 2021; 92:e2021147. [PMID: 33944831 PMCID: PMC8142768 DOI: 10.23750/abm.v92is1.9885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 12/01/2020] [Indexed: 11/28/2022]
Abstract
We report an unusual and rare case of infection from methicillin resistant Staphylococcus aureus (MRSA) producing Panton-Valentine leukocidin in a preterm neonate in NICU. On day of life 8, a preterm baby boy suddenly developed arthritis, giant cutaneous abscesses and an osteomyelitic focus with pour clinical condition. This very aggressive presentation of infection from MRSA push us to test Panton-Valentine leukocidin resulted positive and to test contacts to discover the bearer of the germ. MRSA producing Panton-Valentine leukocidin is an unusual case of infection in preterm neonate that has not been reported elsewhere. A very aggressive sepsis in neonates from Staphilococcus aureus should evoke the need to test Panton-Valentine leukocidin to rapidly establish an appropriate treatment. We underline also the importance to test contacts to establish promptly a decontaminant therapy.
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Affiliation(s)
- Letizia Capasso
- Neonatology, Pediatrics. Departement of Translational Medical Science. University Federico II, Napoli, Italy..
| | - Julia Cerullo
- Neonatology, Pediatrics. Departement of Translational Medical Science. University Federico II, Napoli, Italy.
| | - Andrea Lo Vecchio
- Pediatric Infectious Diseases Unit. Departement of Translational Medical Science. University Federico II, Napoli, Italy..
| | - Clara Coppola
- Neonatology, Pediatrics. Departement of Translational Medical Science. University Federico II, Napoli, Italy.
| | - Lorenza Lepore
- Neonatology, Pediatrics. Departement of Translational Medical Science. University Federico II, Napoli. Italy.
| | - Valentina Marra
- Neonatology, Pediatrics. Departement of Translational Medical Science. University Federico II, Via Pansini 5, 80131. Napoli. Italy.
| | - Eleni Antonaki
- Department of Molecular Medicine and Medical Biotechnology - Division of Bacteriology and Mycology, University of Naples. Federico II, Naples, Italy.
| | - Francesco Raimondi
- Neonatology, Pediatrics. Departement of Translational Medical Science. University Federico II, Napoli. Italy.
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3
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Senok A, Somily AM, Nassar R, Garaween G, Kim Sing G, Müller E, Reissig A, Gawlik D, Ehricht R, Monecke S. Emergence of novel methicillin-resistant Staphylococcus aureus strains in a tertiary care facility in Riyadh, Saudi Arabia. Infect Drug Resist 2019; 12:2739-2746. [PMID: 31564924 PMCID: PMC6731981 DOI: 10.2147/idr.s218870] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 08/10/2019] [Indexed: 02/03/2023] Open
Abstract
PURPOSE There is a need for continuous surveillance of methicillin-resistant Staphylococcus aureus (MRSA) to identify emergence of new strains. We hypothesize that MRSA strains are evolving with ongoing acquisition of SCCmec elements. This study was carried out to evaluate the evolution of MRSA at a tertiary care facility in Saudi Arabia. METHODS MRSA isolates associated with invasive clinical infection, which were identified in 2017 at the microbiology laboratory, King Khalid University Hospital (KKUH) in Riyadh, Saudi Arabia, were studied. The molecular characterization of isolates was carried out using StaphyType DNA microarray (Alere Technologies GmbH/Abbott, Jena, Germany). RESULTS The 125 MRSA isolates studied belonged to 18 clonal complexes (CC) which were distributed into 32 strain assignments. The predominant CC were CC5 (n=30), CC6 (n=17), CC80 (n=13), CC22 (n=12), CC361 (n=12). The findings demonstrated the first identification of CC152, CC361 and CC1153 MRSA as well as ST5-MRSA-[I+fus], "Geraldine Clone", CC6-MRSA-IV (PVL+) and CC88-MRSA-V (PVL+), WA MRSA-117 in Saudi Arabia. Four novel variants were identified: CC5-MRSA-[VI+fus+tirS], CC22-MRSA-[V/VT+fus](PVL+), CC152-MRSA-[V+fus](PVL+) and CC361-MRSA-[VT+fus]. Fifty-four isolates (n/N=54/125; 43.2%) including the novel strains carried the Q6GD50 SCCfusC gene while the Panton-Valentine leukocidin genes were present in 30.4% (n/N=38/125). CONCLUSION The findings demonstrate an expanding MRSA repertoire in our setting including emergence of previously unreported clonal complexes and novel strains. The high carriage of fusC gene suggests a role for fusidic acid misuse in driving the evolution of the MRSA genome and underscores the need for increased monitoring of antibiotic use.
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Affiliation(s)
- Abiola Senok
- Department of Basic Medical Sciences, College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Ali M Somily
- Department of Pathology and Laboratory Medicine, College of Medicine, King Khalid University Hospital and King Saud University, Riyadh, Saudi Arabia
| | - Rania Nassar
- Department of Basic Medical Sciences, College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Ghada Garaween
- Department of Microbiology and Immunology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Garwin Kim Sing
- Department of Microbiology and Immunology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Elke Müller
- InfectoGnostics Research Campus Jena, Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Jena, Germany
| | - Annett Reissig
- InfectoGnostics Research Campus Jena, Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Jena, Germany
| | | | - Ralf Ehricht
- InfectoGnostics Research Campus Jena, Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Jena, Germany
| | - Stefan Monecke
- InfectoGnostics Research Campus Jena, Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Jena, Germany
- Medical Faculty “Carl Gustav Carus”, Institute for Medical Microbiology and Hygiene, Technische Universität Dresden, Dresden, Germany
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Hoppe PA, Holzhauer S, Lala B, Bührer C, Gratopp A, Hanitsch LG, Humme D, Kieslich M, Kallinich T, Lau S, Leistner R, Niebank M, Pokrywka A, Ringe H, Schaper AS, Schröder JT, Schwarz C, Staab D, Stegemann MS, Thee S, Varnholt V, von Bernuth H, Weber-Carstens S, Wendt A, Krüger R. Severe infections of Panton-Valentine leukocidin positive Staphylococcus aureus in children. Medicine (Baltimore) 2019; 98:e17185. [PMID: 31567961 PMCID: PMC6756729 DOI: 10.1097/md.0000000000017185] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Infections caused by Panton-Valentine leukocidin-positive Staphylococcus aureus (PVL-SA) mostly present as recurrent skin abscesses and furunculosis. However, life-threatening infections (eg, necrotizing pneumonia, necrotizing fasciitis, and osteomyelitis) caused by PVL-SA have also been reported.We assessed the clinical phenotype, frequency, clinical implications (surgery, length of treatment in hospitals/intensive care units, and antibiotic treatments), and potential preventability of severe PVL-SA infections in children.Total, 75 children treated for PVL-SA infections in our in- and outpatient units from 2012 to 2017 were included in this retrospective study.Ten out of 75 children contracted severe infections (PVL-methicillin resistant S aureus n = 4) including necrotizing pneumonia (n = 4), necrotizing fasciitis (n = 2), pyomyositis (n = 2; including 1 patient who also had pneumonia), mastoiditis with cerebellitis (n = 1), preorbital cellulitis (n = 1), and recurrent deep furunculosis in an immunosuppressed patient (n = 1). Specific complications of PVL-SA infections were venous thrombosis (n = 2), sepsis (n = 5), respiratory failure (n = 5), and acute respiratory distress syndrome (n = 3). The median duration of hospital stay was 14 days (range 5-52 days). In 6 out of 10 patients a history suggestive for PVL-SA colonization in the patient or close family members before hospital admission was identified.PVL-SA causes severe to life-threatening infections requiring lengthy treatments in hospital in a substantial percentage of symptomatic PVL-SA colonized children. More than 50% of severe infections might be prevented by prompt testing for PVL-SA in individuals with a history of abscesses or furunculosis, followed by decolonization measures.
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Affiliation(s)
- Pia-Alice Hoppe
- Department of Pediatric Pneumology, Immunology and Intensive Care
| | | | | | | | | | | | - Daniel Humme
- Department of Dermatology, Venerology and Allergy
| | | | | | - Susanne Lau
- Department of Pediatric Pneumology, Immunology and Intensive Care
| | | | | | | | - Hannelore Ringe
- Department of Pediatric Pneumology, Immunology and Intensive Care
| | | | | | - Carsten Schwarz
- Department of Pediatric Pneumology, Immunology and Intensive Care
| | - Doris Staab
- Department of Pediatric Pneumology, Immunology and Intensive Care
| | | | - Stephanie Thee
- Department of Pediatric Pneumology, Immunology and Intensive Care
| | - Verena Varnholt
- Department of Pediatric Pneumology, Immunology and Intensive Care
| | - Horst von Bernuth
- Department of Pediatric Pneumology, Immunology and Intensive Care
- Department of Immunology, Labor Berlin Charité-Vivantes GmbH
- Berlin-Brandenburg Center for Regenerative Therapies
| | - Steffen Weber-Carstens
- Department of Anesthesiology and Operative Intensive Care Medicine Campus Mitte and Campus-Virchow Klinikum, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Anke Wendt
- Department of Pediatric Pneumology, Immunology and Intensive Care
| | - Renate Krüger
- Department of Pediatric Pneumology, Immunology and Intensive Care
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Santosaningsih D, Santoso S, Budayanti NS, Suata K, Lestari ES, Wahjono H, Djamal A, Kuntaman K, van Belkum A, Laurens M, Snijders SV, Willemse-Erix D, Goessens WH, Verbrugh HA, Severin JA. Characterisation of clinical Staphylococcus aureus isolates harbouring mecA or Panton-Valentine leukocidin genes from four tertiary care hospitals in Indonesia. Trop Med Int Health 2016; 21:610-8. [PMID: 26970318 DOI: 10.1111/tmi.12692] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVES To determine the prevalence, antimicrobial susceptibility profiles and clonal distribution of either methicillin-resistant Staphylococcus aureus (MRSA) or Panton-Valentine leukocidin (PVL)-positive S. aureus obtained from clinical cultures in Indonesian hospitals. METHODS S. aureus isolates from clinical cultures of patients in four tertiary care hospitals in Denpasar, Malang, Padang and Semarang were included. We assessed the antimicrobial susceptibility profiles using the Vitek2(®) system, determined the presence of the mecA gene and genes encoding PVL using PCR and analysed the clonal relatedness with Raman spectroscopy. SCCmec typing was performed for all MRSA isolates. Multilocus sequence typing (MLST) was performed for a subset of isolates. RESULTS In total, 259 S. aureus strains were collected. Of these, 17/259 (6.6%) and 48/259 (18.5%) were MRSA and PVL-positive methicillin-susceptible S. aureus (MSSA), respectively. The prevalence of MRSA and PVL-positive MSSA ranged between 2.5-8.9% and 9.5-29.1%, respectively and depended on geographic origin. PVL-positive MRSA were not detected. Raman spectroscopy of the strains revealed multiple Raman types with two predominant clusters. We also showed possible transmission of a ST239-MRSA-SCCmec type III strain and a ST121 PVL-positive MSSA in one of the hospitals. CONCLUSIONS We showed that MRSA and PVL-positive MSSA are of clinical importance in Indonesian hospitals. A national surveillance system should be set-up to further monitor this. To reduce the prevalence of MRSA in Indonesian hospitals, a bundle of intervention measures is highly recommended.
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Affiliation(s)
- Dewi Santosaningsih
- Department of Microbiology, Faculty of Medicine, Brawijaya University/Dr.Saiful Anwar Hospital, Malang, Indonesia
| | - Sanarto Santoso
- Department of Microbiology, Faculty of Medicine, Brawijaya University/Dr.Saiful Anwar Hospital, Malang, Indonesia
| | - Nyoman S Budayanti
- Department of Microbiology, Faculty of Medicine, Udayana University/Sanglah Hospital, Denpasar, Bali, Indonesia
| | - Ketut Suata
- Department of Microbiology, Faculty of Medicine, Udayana University/Sanglah Hospital, Denpasar, Bali, Indonesia
| | - Endang S Lestari
- Department of Microbiology, Faculty of Medicine, Diponegoro University/Dr.Kariadi Hospital, Semarang, Indonesia
| | - Hendro Wahjono
- Department of Microbiology, Faculty of Medicine, Diponegoro University/Dr.Kariadi Hospital, Semarang, Indonesia
| | - Aziz Djamal
- Department of Microbiology, Faculty of Medicine, Andalas University/Dr.M.Djamil Hospital, Padang, Indonesia
| | - Kuntaman Kuntaman
- Department of Microbiology, Faculty of Medicine, Airlangga University/Dr.Soetomo Hospital, Surabaya, Indonesia
| | - Alex van Belkum
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre, Rotterdam, the Netherlands.,Microbiology Unit, Biomérieux, Inc., La Balme, France
| | - Mitchell Laurens
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre, Rotterdam, the Netherlands.,BaseClear BV, Leiden, the Netherlands
| | - Susan V Snijders
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Diana Willemse-Erix
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre, Rotterdam, the Netherlands.,Molecular Diagnostics, Jeroen Bosch Hospital, Tilburg, the Netherlands
| | - Wil H Goessens
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Henri A Verbrugh
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Juliëtte A Severin
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Centre, Rotterdam, the Netherlands
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AlFouzan W, Al-Haddad A, Udo E, Mathew B, Dhar R. Frequency and clinical association of Panton-Valentine leukocidin-positive Staphylococcus aureus isolates: a study from Kuwait. Med Princ Pract 2012; 22:245-9. [PMID: 23147072 PMCID: PMC5586740 DOI: 10.1159/000343906] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Accepted: 09/25/2012] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVE This study was undertaken to determine the frequency of Panton-Valentine leukocidin (PVL)-producing Staphylococcus aureus among strains isolated in our laboratory and to study the association of PVL-positive strains with clinical disease. MATERIALS AND METHODS A total of 291 S. aureus isolates obtained from different clinical specimens from June 1, 2009, to March 31, 2010, at the Farwania Hospital Laboratory were investigated for antimicrobial susceptibility, carriage of genes for PVL, and SCCmec elements. Antimicrobial susceptibility testing was performed by standard methods. The presence of mecA genes for PVL SCCmec typing was determined by PCR. RESULTS Of the 291 S. aureus isolates, 89 (30.6%) were methicillin-resistant S. aureus (MRSA), whereas 202 (69.4%) were methicillin susceptible (MSSA). Genes for PVL were detected in 13 (14.6%) and 24 (12.0%) of the MRSA and MSSA isolates, respectively. The majority of the PVL-producing MRSA and MSSA were isolated from 12 (30.7%) and 19 (21.8%) cases of skin and soft tissue infections (SSTI), respectively. Although both MSSA and MRSA strains were uniformly susceptible to rifampicin, teicoplanin, and vancomycin, multidrug resistance was observed among PVL-producing and nonproducing MRSA isolates. Both MRSA types carried SCCmec type III, IV, IVc, and V genetic elements. CONCLUSION This study revealed the presence of genes for PVL in both MSSA and MRSA, associated mostly with SSTI and respiratory tract infections, supporting previous observations that PVL production is widespread among S. aureus strains obtained from different clinical sources.
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Affiliation(s)
- Wadha AlFouzan
- Microbiology Unit, Department of Laboratories, Farwania Hospital, Farwania, Kuwait.
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Srinivasan A, Seifried SE, Zhu L, Srivastava DK, Perkins R, Shenep JL, Bankowski MJ, Hayden RT. Increasing prevalence of nasal and rectal colonization with methicillin-resistant Staphylococcus aureus in children with cancer. Pediatr Blood Cancer 2010; 55:1317-22. [PMID: 20830777 PMCID: PMC2965815 DOI: 10.1002/pbc.22815] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Accepted: 08/03/2010] [Indexed: 11/08/2022]
Abstract
BACKGROUND Infections with methicillin-resistant Staphylococcus aureus (MRSA), in community-settings, especially with strains carrying the Panton-Valentine Leukocidin (PVL) genes, have increased markedly in recent years. Colonization with S. aureus is a risk factor for infection. However, there are few studies that examine colonization and infection with PVL-positive strains of MRSA in cancer patients. PROCEDURE The epidemiology of colonization and infection with MRSA was studied in children with cancer during two time periods: 2000/2001 and 2006/2007. PVL genes were screened and spa typing performed on the isolates. RESULTS The prevalence of colonization with MRSA increased from 0.6% in 2000/2001 to 2.9% in 2006/2007 (P = 0.0003). MRSA colonization at admission was associated with infection (P < 0.0001; RR 38.32; 95% CI: 23.36-62.84). The prevalence of infection increased from 0.99% in 2000/2001 to 3.78% in 2006-2007 (P = 0.0002). Of the 32 colonized patients, 18 (56%) had infection. None of the 14 colonized but non-infected patients had dual colonization of nares and rectum, while 8 of the 18 infected patients had colonization of both of these sites (P = 0.004). Ten patients (31%) were colonized with PVL-positive strains. Patients colonized with PVL-positive strains were more likely to be colonized both in the nares and rectum (P = 0.005), and more likely to have infection (P = 0.001). Recurrent MRSA infections were seen in 22% of patients. CONCLUSION An increasing prevalence of colonization with MRSA was observed in children with cancer at our institution. Colonization with MRSA especially with PVL-positive strains was associated with infection.
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Affiliation(s)
- Ashok Srinivasan
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105-3678, USA.
| | - Steven E. Seifried
- Department of Cell and Molecular Microbiology, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI
| | - Liang Zhu
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN
| | - Deo K. Srivastava
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN
| | - Rosalie Perkins
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
| | - Jerry L. Shenep
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN,Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN
| | - Matthew J. Bankowski
- Department of Pathology, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI,Diagnostic Laboratory Services, Inc, Honolulu, HI
| | - Randall T. Hayden
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
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Srinivasan A, Seifried S, Zhu L, Srivastava DK, Flynn PM, Shenep JL, Bankowski MJ, Hayden RT. Panton-Valentine leukocidin-positive methicillin-resistant Staphylococcus aureus infections in children with cancer. Pediatr Blood Cancer 2009; 53:1216-20. [PMID: 19731325 PMCID: PMC3075015 DOI: 10.1002/pbc.22254] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND New strains of methicillin-resistant Staphylococcus aureus (MRSA) which frequently carry the Panton-Valentine leukocidin (PVL) genes have been recognized to cause invasive infections in otherwise healthy children and adults. However, the epidemiology of PVL-positive MRSA infections has not been described in children or adults with cancer. PROCEDURE The epidemiology of MRSA infections in patients with cancer was retrospectively studied from 2000 to 2007. Molecular typing was performed by polymerase chain reaction (PCR) for the detection of the PVL genes. Staphylococcus cassette chromosome (SCC) mec and spa typing was performed on all PVL-positive isolates. RESULTS A total of 88 MRSA isolates from clinically distinct infectious episodes were collected from 88 patients with cancer during the 8-year study period. Infections were predominant in the skin and soft tissues (SSTI; P = 0.0003). PVL-positive isolates, bearing the type IV SCCmec element, encoding the gene for methicillin resistance, increased significantly during this period (P = 0.043) and comprised 35 of 88 (40%) MRSA isolates. Of these 35 isolates, 32 belonged to spa type 8 and were USA300 genotype. Patients infected with PVL-positive strains did not have more SSTI (P = 0.166) or bacteremia (P = 0.510) as compared to patients with PVL-negative strains. A greater percentage of PVL-positive isolates were susceptible to ciprofloxacin (P = 0.006). CONCLUSIONS PVL-positive MRSA infections are not associated with a higher morbidity as compared to PVL-negative MRSA infections in children with cancer.
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Affiliation(s)
- Ashok Srinivasan
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA.
| | - Steven Seifried
- Department of Cell and Molecular Microbiology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Liang Zhu
- Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, Tennessee
| | - Deo K. Srivastava
- Department of Biostatistics, St. Jude Children’s Research Hospital, Memphis, Tennessee
| | - Patricia M. Flynn
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Jerry L. Shenep
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Matthew J. Bankowski
- Department of Pathology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii, Diagnostic Laboratory Services, Inc., Honolulu, Hawaii
| | - Randall T. Hayden
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee
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Tristan A, Bes M, Meugnier H, Lina G, Bozdogan B, Courvalin P, Reverdy ME, Enright MC, Vandenesch F, Etienne J. Global distribution of Panton-Valentine leukocidin--positive methicillin-resistant Staphylococcus aureus, 2006. Emerg Infect Dis 2007; 13:594-600. [PMID: 17553275 PMCID: PMC2725977 DOI: 10.3201/eid1304.061316] [Citation(s) in RCA: 335] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
We determined the agr type, multilocus sequence type, protein A gene type (spa typing), toxin gene profile, and antimicrobial drug resistance profile of 469 isolates of Panton-Valentine leukocidin-positive community-acquired methicillin-resistant Staphylococcus aureus isolates (PVL-positive CA-MRSA). The isolates had been collected from around the world from 1999 through 2005 by the French National Reference Center for Staphylococci. We found that some continent-specific clones described in 2003, such as clone ST8, have now spread all over the world. Likewise, some PVL-positive CA-MRSA have spread to several countries on various continents. New clones have emerged (e.g., ST377) on new genetic backgrounds. PVL-positive CA-MRSA that were usually susceptible to most antistaphylococcal antimicrobial agents have acquired new resistance determinants (e.g., to gentamicin) in certain countries. The major trait shared by all these clones is a short staphylococcal chromosomal cassette mec element of type IV or V.
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Affiliation(s)
- Anne Tristan
- Centre National de Référence des Staphylocoques, INSERM, Lyon, France.
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10
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Abstract
Highly virulent community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) with Panton-Valentine leukocidin (PVL) is common worldwide. Using antimicrobial drug susceptibility testing, staphylococcal cassette chromosome mec typing, exotoxin profiling, and pulsed-field gel electrophoresis typing, we provide evidence that supports the relationship between nasal strains of PVL-positive MRSA and community-acquired disease.
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Affiliation(s)
- Wen-Tsung Lo
- National Defense Medical Center, Taipei, Taiwan, Republic of China;,Tri-Service General Hospital, Taipei, Taiwan, Republic of China
| | - Wei-Jen Lin
- Tri-Service General Hospital, Taipei, Taiwan, Republic of China
| | - Min-Hua Tseng
- Tri-Service General Hospital, Taipei, Taiwan, Republic of China
| | - Sheng-Ru Wang
- Tri-Service General Hospital, Taipei, Taiwan, Republic of China
| | - Mong-Ling Chu
- Tri-Service General Hospital, Taipei, Taiwan, Republic of China
| | - Chih-Chien Wang
- National Defense Medical Center, Taipei, Taiwan, Republic of China;,Tri-Service General Hospital, Taipei, Taiwan, Republic of China
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11
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Affiliation(s)
- Sanjay K Shukla
- Molecular Microbiology Laboratory, Clinical Research Center, Marshfield Clinic Research Foundation, Marshfield, WI 54449, USA.
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