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Carter-Storch R, Pries-Heje MM, Povlsen JA, Christensen U, Gill SU, Glud Hjulmand J, Bruun NE, Elming H, Madsen T, Fuursted K, Schultz M, Christensen JJ, Rosenvinge F, Helweg-Larsen J, Fosbøl E, Køber L, Torp-Pedersen C, Tønder N, Moser C, Iversen K, Bundgaard H, Ihlemann N. Association Between Vegetation Size And Outcome In The POET Trial. Am J Cardiol 2024:S0002-9149(24)00338-2. [PMID: 38703884 DOI: 10.1016/j.amjcard.2024.04.058] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/26/2024] [Accepted: 04/26/2024] [Indexed: 05/06/2024]
Abstract
BACKGROUND Step-down oral antibiotic therapy is associated with a non-inferior long-term outcome compared to continued intravenous antibiotic therapy in the treatment of left-sided infective endocarditis (IE). We aimed to analyze whether step-down oral therapy compared to continued intravenous antibiotic therapy is also associated with a non-inferior outcome in patients with large vegetations (vegetation length ≥ 10 mm) or among patients undergoing surgery before step-down oral therapy. METHODS We included patients without presence of aortic root abscess at diagnosis from the POET study. Multivariable Cox regression analyses were used to find associations between large vegetation, cardiac surgery, step-down oral therapy and the primary endpoint (composite of all-cause mortality, unplanned cardiac surgery, embolic event or relapse of positive blood cultures during follow-up). RESULTS A total of 368 patients (age 68±12, 77% men) were included. Patients with large vegetations (n = 124) were more likely to undergo surgery compared to patients with small vegetations (n=244) (65% vs 20%, p<0.001). During a median 1406 days of follow-up, 146 patients reached the primary endpoint. Large vegetations were not associated with the primary endpoint (HR 0.74 [95% CI 0.47-1.18], p=0.21). Step-down oral therapy was non-inferior to continued intravenous antibiotic in all subgroups when stratified by the presence of a large vegetation at baseline and early cardiac surgery. CONCLUSION Step-down oral therapy safe in the presence of a large vegetation at diagnosis and among patients undergoing early cardiac surgery.
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Affiliation(s)
| | | | - Jonas A Povlsen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Ulrik Christensen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Sabine U Gill
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | - Julie Glud Hjulmand
- Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Niels E Bruun
- Department of Cardiology, Zeeland University Hospital, Roskilde, Denmark
| | - Hanne Elming
- Department of Cardiology, Zeeland University Hospital, Roskilde, Denmark
| | - Trine Madsen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi. Statens Serum Institut, Copenhagen, Denmark
| | - Martin Schultz
- Department of Cardiology, Herlev Hospital, Copenhagen, Denmark
| | - Jens J Christensen
- The Regional Department of Clinical Microbiology, Zealand University hospital, Roskilde, Denmark
| | - Flemming Rosenvinge
- Department of Clinical Microbiology, Odense University Hospital, Odense, Denmark
| | | | - Emil Fosbøl
- Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark; Department of clinical medicine, University of Copenhagen, Copenhagen, Denmark
| | - Lars Køber
- Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Niels Tønder
- Department of Cardiology, University of Copenhagen, Hillerød, Denmark
| | - Claus Moser
- Department of Clinical Microbiology, Copenhagen University Hospital, Copenhagen, Denmark; Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Kasper Iversen
- Department of Cardiology, Herlev Hospital, Copenhagen, Denmark; Department of clinical medicine, University of Copenhagen, Copenhagen, Denmark
| | - Henning Bundgaard
- Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Nikolaj Ihlemann
- Department of Cardiology, Bispebjerg Hospital, Copenhagen, Denmark
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Eickhardt-Dalbøge CS, Nielsen HV, Fuursted K, Stensvold CR, Andersen LOB, Lilje B, Larsen MK, Kjær L, Christensen SF, Knudsen TA, Skov V, Sørensen AL, Ellervik C, Olsen LR, Christensen JJE, Nielsen XC, Hasselbalch HC, Ingham AC. JAK2V617F drives gut microbiota differences in patients with myeloproliferative neoplasms. Eur J Haematol 2024; 112:776-787. [PMID: 38226781 DOI: 10.1111/ejh.14169] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/22/2023] [Accepted: 12/27/2023] [Indexed: 01/17/2024]
Abstract
BACKGROUND Essential thrombocythemia (ET), polycythemia vera (PV), and primary myelofibrosis (MF) are myeloproliferative neoplasms (MPN). Inflammation is involved in the initiation, progression, and symptomology of the diseases. The gut microbiota impacts the immune system, infection control, and steady-state hematopoiesis. METHODS We analyzed the gut microbiota of 227 MPN patients and healthy controls (HCs) using next-generation sequencing. We expanded our previous results in PV and ET patients with additional PV, pre-MF, and MF patients which allowed us to compare MPN patients collectively, MPN sub-diagnoses, and MPN mutations (separately and combined) vs. HCs (N = 42) and compare within MPN sub-diagnoses and MPN mutation. RESULTS MPN patients had a higher observed richness (median, 245 [range, 49-659]) compared with HCs (191.5 [range, 111-300; p = .003]) and a lower relative abundance of taxa within the Firmicutes phylum; for example, Faecalibacterium (6% vs. 14%, p < .001). The microbiota of CALR-positive patients (N = 30) resembled that of HCs more than that of patients with JAK2V617F (N = 177). In JAK2V617F-positive patients, only minor differences in the gut microbiota were observed between MPN sub-diagnoses, illustrating the importance of this mutation. CONCLUSION The gut microbiota in MPN patients differs from HCs and is driven by JAK2V617F, whereas the gut microbiota in CALR patients resembles HCs more.
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Affiliation(s)
- Christina Schjellerup Eickhardt-Dalbøge
- The Regional Department of Clinical Microbiology, University Hospital of Region Zealand, Slagelse, Denmark
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
- Department of Bacteria, Parasites & Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Henrik V Nielsen
- Department of Bacteria, Parasites & Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites & Fungi, Statens Serum Institut, Copenhagen, Denmark
| | | | - Lee O' Brien Andersen
- Department of Bacteria, Parasites & Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Berit Lilje
- Department of Bacteria, Parasites & Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Morten Kranker Larsen
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lasse Kjær
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
| | | | - Trine Alma Knudsen
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
| | - Vibe Skov
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
| | | | - Christina Ellervik
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Pathology, Harvard Medical School, Boston, Massachusetts, USA
- Department of Data and Data Support, Region Zealand, Sorø, Denmark
| | - Lars Rønn Olsen
- Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Jens Jørgen Elmer Christensen
- The Regional Department of Clinical Microbiology, University Hospital of Region Zealand, Slagelse, Denmark
- Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Xiaohui Chen Nielsen
- The Regional Department of Clinical Microbiology, University Hospital of Region Zealand, Slagelse, Denmark
| | - Hans Carl Hasselbalch
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anna Cäcilia Ingham
- Department of Bacteria, Parasites & Fungi, Statens Serum Institut, Copenhagen, Denmark
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3
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Iordache A, Fuursted K, Rift CV, Rasmussen A, Willemoe GL, Hasselby JP. Hepatic granulomas following liver transplantation: A retrospective survey, and analysis of possible microbiological etiology. Pathol Res Pract 2024; 255:155201. [PMID: 38367601 DOI: 10.1016/j.prp.2024.155201] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND Liver granulomas have always been a diagnostic challenge for pathologists. They have been described in up to 15% of liver biopsies and can also be seen in liver allograft biopsy specimens, but there is a paucity of information regarding the prevalence and associated etiologic factors of granulomas in liver transplanted patients. The aim of this study is to shed light on the etiology of liver granulomas. METHODS Liver biopsies from liver transplanted patients, in the period from 01.01.2011 - 01.05.2017, were examined. We registered the histo-morphological characteristics and clinicopathological data of all biopsies and performed next-generation sequencing (NGS) to detect possible pathogens (bacteria, fungi, and parasites) in the biopsies containing granulomas. RESULTS We reviewed a total of 400 liver biopsies from 217 liver transplant patients. Of these, 131 liver biopsies (32.8%) from 98 patients (45.2%) revealed granulomas. Most were epithelioid granulomas located parenchymal and were detected in 115 (87.7%) biopsies. We also identified 10 cases (7.6%) with both lobular and portal granulomas and six biopsies (4.5%) with portal granulomas alone. In 54 biopsies (41.2%), granulomas were found in biopsies with acute cellular rejection (ACR). Fifty (51%) patients with granulomas underwent liver transplantation for autoimmune-related end-stage liver disease (AILD). The granulomas were found most frequently in the first six months after transplantation, where patients also more often were biopsied. NGS analysis did not reveal any potential infectious agent, and no significant differences were observed in the microbiological diversity (microbiome) between clinical- and granuloma characteristics concerning bacteria, fungi, and parasites. CONCLUSION Our study confirmed that granulomas are frequently seen in liver allograft biopsy specimens, and most often localized in the parenchyma, occurring in the first post-transplant period in patients with AILD, and often seen simultaneously with episodes of ACR. Neither a specific microbiological etiological agent nor a consistent microbiome was detected in any case.
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Affiliation(s)
- Anisoara Iordache
- Department of Pathology, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen Ø, Denmark
| | - Kurt Fuursted
- Department of Microbiology and Infection Control, Reference Laboratory, Statens Serum Institut, Artillerivej 5, DK-2300 Copenhagen S, Denmark
| | | | - Allan Rasmussen
- Department of Surgical Gastroenterology, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen Ø, Denmark
| | - Gro Linno Willemoe
- Department of Pathology, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen Ø, Denmark
| | - Jane Preuss Hasselby
- Department of Pathology, Rigshospitalet, Blegdamsvej 9, DK-2100 Copenhagen Ø, Denmark
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Ring HC, Thorsen J, Lilje B, Bay L, Bjarnsholt T, Fuursted K, Saunte DM, Jemec GB, Thomsen SF. Predictive metagenomic analysis identifies specific bacterial metabolic pathways in hidradenitis suppurativa tunnels. J Eur Acad Dermatol Venereol 2024; 38:e63-e65. [PMID: 37595295 DOI: 10.1111/jdv.19433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/09/2023] [Indexed: 08/20/2023]
Affiliation(s)
- Hans Christian Ring
- Department of Dermato-Venereology & Wound Healing Centre, Bispebjerg Hospital, Copenhagen, Denmark
| | - Jonathan Thorsen
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Berit Lilje
- Department of Microbiology and Infection Control, Statens Serum Institut, Copenhagen, Denmark
| | - Lene Bay
- Costerton Biofilm Center, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Bjarnsholt
- Costerton Biofilm Center, University of Copenhagen, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Microbiology and Infection Control, Statens Serum Institut, Copenhagen, Denmark
| | - Ditte Marie Saunte
- Department of Dermatology, Zealand University Hospital, Roskilde, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Gregor Borut Jemec
- Department of Dermatology, Zealand University Hospital, Roskilde, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Simon Francis Thomsen
- Department of Dermato-Venereology & Wound Healing Centre, Bispebjerg Hospital, Copenhagen, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
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5
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Bock M, Van Hasselt JGC, Schwartz F, Wang H, Høiby N, Fuursted K, Ihlemann N, Gill S, Christiansen U, Bruun NE, Elming H, Povlsen JA, Køber L, Høfsten DE, Fosbøl EL, Pries-Heje MM, Christensen JJ, Rosenvinge FS, Torp-Pedersen C, Helweg-Larsen J, Tønder N, Iversen K, Bundgaard H, Moser C. Rifampicin reduces plasma concentration of linezolid in patients with infective endocarditis. J Antimicrob Chemother 2023; 78:2840-2848. [PMID: 37823408 DOI: 10.1093/jac/dkad316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 09/25/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND Linezolid in combination with rifampicin has been used in treatment of infective endocarditis especially for patients infected with staphylococci. OBJECTIVES Because rifampicin has been reported to reduce the plasma concentration of linezolid, the present study aimed to characterize the population pharmacokinetics of linezolid for the purpose of quantifying an effect of rifampicin cotreatment. In addition, the possibility of compensation by dosage adjustments was evaluated. PATIENTS AND METHODS Pharmacokinetic measurements were performed in 62 patients treated with linezolid for left-sided infective endocarditis in the Partial Oral Endocarditis Treatment (POET) trial. Fifteen patients were cotreated with rifampicin. A total of 437 linezolid plasma concentrations were obtained. The pharmacokinetic data were adequately described by a one-compartment model with first-order absorption and first-order elimination. RESULTS We demonstrated a substantial increase of linezolid clearance by 150% (95% CI: 78%-251%), when combined with rifampicin. The final model was evaluated by goodness-of-fit plots showing an acceptable fit, and a visual predictive check validated the model. Model-based dosing simulations showed that rifampicin cotreatment decreased the PTA of linezolid from 94.3% to 34.9% and from 52.7% to 3.5% for MICs of 2 mg/L and 4 mg/L, respectively. CONCLUSIONS A substantial interaction between linezolid and rifampicin was detected in patients with infective endocarditis, and the interaction was stronger than previously reported. Model-based simulations showed that increasing the linezolid dose might compensate without increasing the risk of adverse effects to the same degree.
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Affiliation(s)
- Magnus Bock
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Johan G C Van Hasselt
- Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Franziska Schwartz
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Hengzhuang Wang
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Niels Høiby
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Nikolaj Ihlemann
- Department of Cardiology, Bispebjerg Hospital, Copenhagen, Denmark
| | - Sabine Gill
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | | | - Niels Eske Bruun
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Hanne Elming
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark
| | - Jonas A Povlsen
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark
| | - Lars Køber
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Dan E Høfsten
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Emil L Fosbøl
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Mia M Pries-Heje
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Jens Jørgen Christensen
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- The Regional Department of Clinical Microbiology, Region Zealand, Slagelse, Denmark
| | - Flemming S Rosenvinge
- Department of Clinical Microbiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Microbiology, University of Southern Denmark, Odense, Denmark
| | - Christian Torp-Pedersen
- Department of Cardiology, Nordsjællands Hospital, Hillerød, Denmark
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Jannik Helweg-Larsen
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Niels Tønder
- Department of Cardiology, Nordsjællands Hospital, Hillerød, Denmark
| | - Kasper Iversen
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Emergency Medicine, Copenhagen University Hospital, Herlev-Gentofte, Copenhagen, Denmark
| | - Henning Bundgaard
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Claus Moser
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
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Knuutila A, Dalby T, Ahvenainen N, Barkoff AM, Jørgensen CS, Fuursted K, Mertsola J, He Q. Antibody avidity to pertussis toxin after acellular pertussis vaccination and infection. Emerg Microbes Infect 2023; 12:e2174782. [PMID: 36715361 PMCID: PMC9936998 DOI: 10.1080/22221751.2023.2174782] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Pertussis toxin (PT) is a unique virulence factor of Bordetella pertussis, and therefore a key component of acellular pertussis vaccines. Although immunity after infection seems to persist longer than after vaccination, the exact mechanisms are not fully known. In this study the overall binding strength (avidity) of anti-PT IgG antibodies was compared after acellular booster vaccination and infection, as a parameter to evaluate long-lasting protection.Danish and Finnish serum samples from a total of 134 serologically confirmed patients and 112 children who received acellular booster vaccines were included in this study. The concentration of anti-PT IgG was first determined by ELISA, followed by two separate ELISAs to evaluate antibody avidity: either with a dilution series of urea as a bond-breaking agent of antibody and antigen binding and a constant anti-PT IgG concentration between the samples or with a constant dilution ratio of sera and detergent. In addition to urea, the use of diethylamine and ammonium thiocyanate as disruptive agents were first compared between each other.A strong Spearman correlation (R > 0.801) was noted between avidity and concentration of anti-PT IgG antibodies if a constant serum dilution method was used, and avidity was noted to be higher in patients in comparison to vaccinees in Denmark, but not in Finland. However, no correlation between antibody concentration and avidity was found if a constant anti-PT IgG concentration was used (R = -0.157). With this method, avidity after vaccination was significantly higher in comparison to that after infection in both Danish and Finnish subjects (p < 0.01). A shorter time since the latest booster vaccination was found to affect avidity positively on the next PT-antigen exposure with either vaccination or infection.
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Affiliation(s)
- Aapo Knuutila
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - Tine Dalby
- Statens Serum Institut, Copenhagen, Denmark
| | | | | | | | | | - Jussi Mertsola
- Department of Pediatrics and Adolescent Medicine, Turku University Hospital, Turku, Finland
| | - Qiushui He
- Institute of Biomedicine, University of Turku, Turku, Finland,InFLAMES Research Flagship Center, University of Turku, Turku, Finland, Qiushui He
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7
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Poulsen SH, Søgaard KK, Fuursted K, Nielsen HL. Evaluating the diagnostic accuracy and clinical utility of 16S and 18S rRNA gene targeted next-generation sequencing based on five years of clinical experience. Infect Dis (Lond) 2023; 55:767-775. [PMID: 37535652 DOI: 10.1080/23744235.2023.2241550] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 07/21/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND The use of 16S/18S rRNA targeted next-generation sequencing (tNGS) has improved microbial diagnostics, however, the use of tNGS in a routine clinical setting requires further elucidation. We retrospectively evaluated the diagnostic accuracy and clinical utility of 16S/18S tNGS, routinely used in the North Denmark Region between 2017 and 2021. METHODS We retrieved 544 tNGS results from 491 patients hospitalised with suspected infection (e.g. meningitis, pneumonia, intraabdominal abscess, osteomyelitis and joint infection). The tNGS assays was performed using the Illumina MiSeq desktop sequencer, and BION software for annotation. The patients' diagnosis and clinical management was evaluated by medical chart review. We calculated sensitivity and specificity, and determined the diagnostic accuracy of tNGS by defining results as true positive, true negative, false positive, and false negative. RESULTS Overall, tNGS had a sensitivity of 56% and a specificity of 97%. tNGS was more frequently true positive compared to culture (32% vs 18%), and tNGS detected a greater variety of bacteria and fungi, and was more frequently polymicrobial. However, the total diagnostic turnaround time was 16 days, and although 73% of tNGS results were true positive or true negative, only 4.4% of results led to changes in clinical management. CONCLUSIONS As a supplement to culture, tNGS improves identification of pathogenic microorganisms in a broad range of clinical specimens. However, the long turnaround time of tNGS in our setting may have contributed to a limited clinical utility. An improved turnaround time can be the key to improved clinical utility in a future setting.
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Affiliation(s)
| | - Kirstine Kobberøe Søgaard
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Clinical Microbiology, Aalborg University Hospital, Aalborg, Denmark
| | | | - Hans Linde Nielsen
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Clinical Microbiology, Aalborg University Hospital, Aalborg, Denmark
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8
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Baraka V, Andersson T, Makenga G, Francis F, Minja DTR, Overballe-Petersen S, Tang MHE, Fuursted K, Lood R. Unveiling Rare Pathogens and Antibiotic Resistance in Tanzanian Cholera Outbreak Waters. Microorganisms 2023; 11:2490. [PMID: 37894148 PMCID: PMC10609457 DOI: 10.3390/microorganisms11102490] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
The emergence of antibiotic resistance is a global health concern. Therefore, understanding the mechanisms of its spread is crucial for implementing evidence-based strategies to tackle resistance in the context of the One Health approach. In developing countries where sanitation systems and access to clean and safe water are still major challenges, contamination may introduce bacteria and bacteriophages harboring antibiotic resistance genes (ARGs) into the environment. This contamination can increase the risk of exposure and community transmission of ARGs and infectious pathogens. However, there is a paucity of information on the mechanisms of bacteriophage-mediated spread of ARGs and patterns through the environment. Here, we deploy Droplet Digital PCR (ddPCR) and metagenomics approaches to analyze the abundance of ARGs and bacterial pathogens disseminated through clean and wastewater systems. We detected a relatively less-studied and rare human zoonotic pathogen, Vibrio metschnikovii, known to spread through fecal--oral contamination, similarly to V. cholerae. Several antibiotic resistance genes were identified in both bacterial and bacteriophage fractions from water sources. Using metagenomics, we detected several resistance genes related to tetracyclines and beta-lactams in all the samples. Environmental samples from outlet wastewater had a high diversity of ARGs and contained high levels of blaOXA-48. Other identified resistance profiles included tetA, tetM, and blaCTX-M9. Specifically, we demonstrated that blaCTX-M1 is enriched in the bacteriophage fraction from wastewater. In general, however, the bacterial community has a significantly higher abundance of resistance genes compared to the bacteriophage population. In conclusion, the study highlights the need to implement environmental monitoring of clean and wastewater to inform the risk of infectious disease outbreaks and the spread of antibiotic resistance in the context of One Health.
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Affiliation(s)
- Vito Baraka
- Tanga Centre, National Institute for Medical Research, Tanga P.O. Box 5004, Tanzania; (V.B.); (G.M.); (F.F.); (D.T.R.M.)
| | - Tilde Andersson
- Department of Clinical Sciences, Lund University, 221 84 Lund, Sweden;
| | - Geofrey Makenga
- Tanga Centre, National Institute for Medical Research, Tanga P.O. Box 5004, Tanzania; (V.B.); (G.M.); (F.F.); (D.T.R.M.)
| | - Filbert Francis
- Tanga Centre, National Institute for Medical Research, Tanga P.O. Box 5004, Tanzania; (V.B.); (G.M.); (F.F.); (D.T.R.M.)
| | - Daniel T. R. Minja
- Tanga Centre, National Institute for Medical Research, Tanga P.O. Box 5004, Tanzania; (V.B.); (G.M.); (F.F.); (D.T.R.M.)
| | | | - Man-Hung Eric Tang
- Department of Bacteria, Statens Serum Institut, Parasites and Fungi, 2300 Copenhagen, Denmark;
| | - Kurt Fuursted
- Bacterial Reference Center, Statens Serum Institut, 2300 Copenhagen, Denmark; (S.O.-P.); (K.F.)
| | - Rolf Lood
- Department of Clinical Sciences, Lund University, 221 84 Lund, Sweden;
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9
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Eickhardt-Dalbøge CS, Ingham AC, Nielsen HV, Fuursted K, Stensvold CR, Andersen LO, Larsen MK, Kjær L, Christensen SF, Knudsen TA, Skov V, Ellervik C, Olsen LR, Hasselbalch HC, Elmer Christensen JJ, Nielsen XC. Pronounced gut microbiota signatures in patients with JAK2V617F-positive essential thrombocythemia. Microbiol Spectr 2023; 11:e0066223. [PMID: 37695126 PMCID: PMC10581245 DOI: 10.1128/spectrum.00662-23] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 07/18/2023] [Indexed: 09/12/2023] Open
Abstract
Essential thrombocythemia (ET) is part of the Philadelphia chromosome-negative myeloproliferative neoplasms. It is characterized by an increased risk of thromboembolic events and also to a certain degree hypermetabolic symptoms. The gut microbiota is an important initiator of hematopoiesis and regulation of the immune system, but in patients with ET, where inflammation is a hallmark of the disease, it is vastly unexplored. In this study, we compared the gut microbiota via amplicon-based 16S rRNA gene sequencing of the V3-V4 region in 54 patients with ET according to mutation status Janus-kinase 2 (JAK2V617F)-positive vs JAK2V617F-negative patients with ET, and in 42 healthy controls (HCs). Gut microbiota richness was higher in patients with ET (median-observed richness, 283.5; range, 75-535) compared with HCs (median-observed richness, 191.5; range, 111-300; P < 0.001). Patients with ET had a different overall bacterial composition (beta diversity) than HCs (analysis of similarities [ANOSIM]; R = 0.063, P = 0.004). Patients with ET had a significantly lower relative abundance of taxa within the Firmicutes phylum compared with HCs (51% vs 59%, P = 0.03), and within that phylum, patients with ET also had a lower relative abundance of the genus Faecalibacterium (8% vs 15%, P < 0.001), an important immunoregulative bacterium. The microbiota signatures were more pronounced in patients harboring the JAK2V617F mutation, and highly similar to patients with polycythemia vera as previously described. These findings suggest that patients with ET may have an altered immune regulation; however, whether this dysregulation is induced in part by, or is itself inducing, an altered gut microbiota remains to be investigated. IMPORTANCE Essential thrombocythemia (ET) is a cancer characterized by thrombocyte overproduction. Inflammation has been shown to be vital in both the initiation and progression of other myeloproliferative neoplasms, and it is well known that the gut microbiota is important in the regulation of our immune system. However, the gut microbiota of patients with ET remains uninvestigated. In this study, we characterized the gut microbiota of patients with ET compared with healthy controls and thereby provide new insights into the field. We show that the gut microbiota of patients with ET differs significantly from that of healthy controls and the patients with ET have a lower relative abundance of important immunoregulative bacteria. Furthermore, we demonstrate that patients with JAK2V617F-positive ET have pronounced gut microbiota signatures compared with JAK2V617F-negative patients. Thereby confirming the importance of the underlying mutation, the immune response as well as the composition of the microbiota.
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Affiliation(s)
- Christina Schjellerup Eickhardt-Dalbøge
- Regional Department of Clinical Microbiology, Zealand University Hospital, Koege, Denmark
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Anna Cäcilia Ingham
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Henrik V. Nielsen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | | | - Lee O'Brien Andersen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Morten Kranker Larsen
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lasse Kjær
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
| | | | - Trine Alma Knudsen
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
| | - Vibe Skov
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
| | - Christina Ellervik
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Laboratory Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Data and Data Support, Region Zealand, Sorø, Denmark
| | - Lars Rønn Olsen
- Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Hans Carl Hasselbalch
- Department of Hematology, Zealand University Hospital, Roskilde, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens Jørgen Elmer Christensen
- Regional Department of Clinical Microbiology, Zealand University Hospital, Koege, Denmark
- Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Xiaohui Chen Nielsen
- Regional Department of Clinical Microbiology, Zealand University Hospital, Koege, Denmark
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10
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Shaw D, Abad R, Amin-Chowdhury Z, Bautista A, Bennett D, Broughton K, Cao B, Casanova C, Choi EH, Chu YW, Claus H, Coelho J, Corcoran M, Cottrell S, Cunney R, Cuypers L, Dalby T, Davies H, de Gouveia L, Deghmane AE, Demczuk W, Desmet S, Domenech M, Drew R, du Plessis M, Duarte C, Erlendsdóttir H, Fry NK, Fuursted K, Hale T, Henares D, Henriques-Normark B, Hilty M, Hoffmann S, Humphreys H, Ip M, Jacobsson S, Johnson C, Johnston J, Jolley KA, Kawabata A, Kozakova J, Kristinsson KG, Krizova P, Kuch A, Ladhani S, Lâm TT, León ME, Lindholm L, Litt D, Maiden MCJ, Martin I, Martiny D, Mattheus W, McCarthy ND, Meehan M, Meiring S, Mölling P, Morfeldt E, Morgan J, Mulhall R, Muñoz-Almagro C, Murdoch D, Murphy J, Musilek M, Mzabi A, Novakova L, Oftadeh S, Perez-Argüello A, Pérez-Vázquez M, Perrin M, Perry M, Prevost B, Roberts M, Rokney A, Ron M, Sanabria OM, Scott KJ, Sheppard C, Siira L, Sintchenko V, Skoczyńska A, Sloan M, Slotved HC, Smith AJ, Steens A, Taha MK, Toropainen M, Tzanakaki G, Vainio A, van der Linden MPG, van Sorge NM, Varon E, Vohrnova S, von Gottberg A, Yuste J, Zanella R, Zhou F, Brueggemann AB. Trends in invasive bacterial diseases during the first 2 years of the COVID-19 pandemic: analyses of prospective surveillance data from 30 countries and territories in the IRIS Consortium. Lancet Digit Health 2023; 5:e582-e593. [PMID: 37516557 PMCID: PMC10914672 DOI: 10.1016/s2589-7500(23)00108-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/22/2023] [Accepted: 05/25/2023] [Indexed: 07/31/2023]
Abstract
BACKGROUND The Invasive Respiratory Infection Surveillance (IRIS) Consortium was established to assess the impact of the COVID-19 pandemic on invasive diseases caused by Streptococcus pneumoniae, Haemophilus influenzae, Neisseria meningitidis, and Streptococcus agalactiae. We aimed to analyse the incidence and distribution of these diseases during the first 2 years of the COVID-19 pandemic compared to the 2 years preceding the pandemic. METHODS For this prospective analysis, laboratories in 30 countries and territories representing five continents submitted surveillance data from Jan 1, 2018, to Jan 2, 2022, to private projects within databases in PubMLST. The impact of COVID-19 containment measures on the overall number of cases was analysed, and changes in disease distributions by patient age and serotype or group were examined. Interrupted time-series analyses were done to quantify the impact of pandemic response measures and their relaxation on disease rates, and autoregressive integrated moving average models were used to estimate effect sizes and forecast counterfactual trends by hemisphere. FINDINGS Overall, 116 841 cases were analysed: 76 481 in 2018-19, before the pandemic, and 40 360 in 2020-21, during the pandemic. During the pandemic there was a significant reduction in the risk of disease caused by S pneumoniae (risk ratio 0·47; 95% CI 0·40-0·55), H influenzae (0·51; 0·40-0·66) and N meningitidis (0·26; 0·21-0·31), while no significant changes were observed for S agalactiae (1·02; 0·75-1·40), which is not transmitted via the respiratory route. No major changes in the distribution of cases were observed when stratified by patient age or serotype or group. An estimated 36 289 (95% prediction interval 17 145-55 434) cases of invasive bacterial disease were averted during the first 2 years of the pandemic among IRIS-participating countries and territories. INTERPRETATION COVID-19 containment measures were associated with a sustained decrease in the incidence of invasive disease caused by S pneumoniae, H influenzae, and N meningitidis during the first 2 years of the pandemic, but cases began to increase in some countries towards the end of 2021 as pandemic restrictions were lifted. These IRIS data provide a better understanding of microbial transmission, will inform vaccine development and implementation, and can contribute to health-care service planning and provision of policies. FUNDING Wellcome Trust, NIHR Oxford Biomedical Research Centre, Spanish Ministry of Science and Innovation, Korea Disease Control and Prevention Agency, Torsten Söderberg Foundation, Stockholm County Council, Swedish Research Council, German Federal Ministry of Health, Robert Koch Institute, Pfizer, Merck, and the Greek National Public Health Organization.
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Affiliation(s)
- David Shaw
- Nuffield Department of Population Health, Big Data Institute, University of Oxford, Oxford, UK
| | - Raquel Abad
- National Reference Laboratory for Meningococci, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Zahin Amin-Chowdhury
- Immunisation and Countermeasures Division, UK Health Security Agency, London, UK
| | | | - Desiree Bennett
- Irish Meningitis and Sepsis Reference Laboratory, Children's Health Ireland, Dublin, Ireland
| | - Karen Broughton
- Staphylococcus and Streptococcus Reference Section, AMRHAI, UK Health Security Agency, London, UK
| | - Bin Cao
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Carlo Casanova
- Swiss National Reference Center for Invasive Pneumococci, Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Eun Hwa Choi
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, South Korea
| | - Yiu-Wai Chu
- Department of Health, Microbiology Division, Public Health Laboratory Services Branch, Centre for Health Protection, Hong Kong Special Administrative Region, China
| | - Heike Claus
- University of Würzburg, Institute for Hygiene and Microbiology, National Reference Centre for Meningococci and Haemophilus influenzae, Würzburg, Germany
| | - Juliana Coelho
- Staphylococcus and Streptococcus Reference Section, AMRHAI, UK Health Security Agency, London, UK
| | - Mary Corcoran
- Irish Meningitis and Sepsis Reference Laboratory, Children's Health Ireland, Dublin, Ireland; Department of Microbiology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | | | - Robert Cunney
- Irish Meningitis and Sepsis Reference Laboratory, Children's Health Ireland, Dublin, Ireland; Department of Microbiology, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Lize Cuypers
- National Reference Centre for Streptococcus pneumoniae, University Hospitals Leuven, Leuven, Belgium; Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Tine Dalby
- Statens Serum Institut, Department of Infectious Disease Epidemiology & Prevention, Copenhagen, Denmark
| | - Heather Davies
- Meningococcal Reference Laboratory, Institute of Environmental Science and Research, Porirua, New Zealand
| | - Linda de Gouveia
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases, Division of the National Health Laboratory Service, Johannesburg, South Africa
| | - Ala-Eddine Deghmane
- Institut Pasteur, Univeristé Paris Cité, Invasive Bacterial Infections Unit and National Reference Centre for Meningococci and Haemophilus influenzae, Paris, France
| | - Walter Demczuk
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada
| | - Stefanie Desmet
- National Reference Centre for Streptococcus pneumoniae, University Hospitals Leuven, Leuven, Belgium; Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Mirian Domenech
- National Center for Microbiology and CIBER of Respiratory Research, Instituto de Salud Carlos III, Madrid, Spain
| | - Richard Drew
- Irish Meningitis and Sepsis Reference Laboratory, Children's Health Ireland, Dublin, Ireland; Department of Microbiology, Royal College of Surgeons in Ireland, Dublin, Ireland; Clinical Innovation Unit, Rotunda, Dublin, Ireland
| | - Mignon du Plessis
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases, Division of the National Health Laboratory Service, Johannesburg, South Africa
| | | | - Helga Erlendsdóttir
- Department of Clinical Microbiology, Landspitali, The National University Hospital of Iceland, Reykjavik, Iceland
| | - Norman K Fry
- Immunisation and Vaccine Preventable Diseases Division and Respiratory and Vaccine Preventable Bacteria Reference Unit, UK Health Security Agency, London, UK
| | - Kurt Fuursted
- Statens Serum Institut, Department of Bacteria, Parasites & Fungi, Copenhagen, Denmark
| | - Thomas Hale
- Blavatnik School of Government, University of Oxford, Oxford, UK
| | - Desiree Henares
- Microbiology Department, Institut Recerca Sant Joan de Déu, Hospital Sant Joan de Deu, Barcelona, Spain; CIBER of Epidemiology and Public Health, Madrid, Spain
| | - Birgitta Henriques-Normark
- Karolinska Institutet, Karolinska University Hospital, Public Health Agency of Sweden, Stockholm, Sweden
| | - Markus Hilty
- Swiss National Reference Center for Invasive Pneumococci, Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Steen Hoffmann
- Statens Serum Institut, Department of Bacteria, Parasites & Fungi, Copenhagen, Denmark
| | - Hilary Humphreys
- Department of Microbiology, Royal College of Surgeons in Ireland, Dublin, Ireland; Department of Clinical Microbiology, Beaumont Hospital, Dublin, Ireland
| | - Margaret Ip
- Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Susanne Jacobsson
- National Reference Laboratory for Neisseria meningitidis, Department of Laboratory Medicine, Clinical Microbiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | | | | | | | | | - Jana Kozakova
- National Reference Laboratory for Streptococcal Infections, Centre for Epidemiology and Microbiology, National Institute of Public Health, Prague, Czech Republic
| | - Karl G Kristinsson
- Department of Clinical Microbiology, Landspitali, The National University Hospital of Iceland, Reykjavik, Iceland
| | - Pavla Krizova
- National Reference Laboratory for Meningococcal Infections, Centre for Epidemiology and Microbiology, National Institute of Public Health, Prague, Czech Republic
| | - Alicja Kuch
- National Reference Centre for Bacterial Meningitis, Department of Epidemiology and Clinical Microbiology, National Medicines Institute, Warsaw, Poland
| | - Shamez Ladhani
- Immunisation and Countermeasures Division, UK Health Security Agency, London, UK
| | - Thiên-Trí Lâm
- University of Würzburg, Institute for Hygiene and Microbiology, National Reference Centre for Meningococci and Haemophilus influenzae, Würzburg, Germany
| | | | - Laura Lindholm
- Finnish Institute for Health and Welfare, Helsinki, Finland
| | - David Litt
- Respiratory and Vaccine Preventable Bacteria Reference Unit, UK Health Security Agency, London, UK
| | | | - Irene Martin
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada
| | - Delphine Martiny
- National Belgian Reference Centre for Haemophilus influenzae, Laboratoire des Hôpitaux Universitaires de Bruxelles-Universitair Laboratorium van Brussel, Brussels, Belgium; Faculty of Medicine and Pharmacy, University of Mons, Mons, Belgium
| | | | - Noel D McCarthy
- Population Health Medicine, Public Health and Primary Care, Trinity College Dublin, Dublin, Ireland
| | - Mary Meehan
- Irish Meningitis and Sepsis Reference Laboratory, Children's Health Ireland, Dublin, Ireland
| | - Susan Meiring
- Division of Public Health Surveillance and Response, National Institute for Communicable Diseases, Division of the National Health Laboratory Service, Johannesburg, South Africa
| | - Paula Mölling
- National Reference Laboratory for Neisseria meningitidis, Department of Laboratory Medicine, Clinical Microbiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | | | - Julie Morgan
- Streptococcal Reference Laboratory, Institute of Environmental Science and Research Limited, Porirua, New Zealand
| | - Robert Mulhall
- Irish Meningitis and Sepsis Reference Laboratory, Children's Health Ireland, Dublin, Ireland
| | - Carmen Muñoz-Almagro
- Microbiology Department, Institut Recerca Sant Joan de Déu, Hospital Sant Joan de Deu, Barcelona, Spain; CIBER of Epidemiology and Public Health, Madrid, Spain; Medicine Department, Universitat Internacional de Catalunya, Barcelona, Spain
| | | | | | - Martin Musilek
- National Reference Laboratory for Meningococcal Infections, Centre for Epidemiology and Microbiology, National Institute of Public Health, Prague, Czech Republic
| | - Alexandre Mzabi
- Ministère de la Santé - Direction de la santé, Luxembourg, Luxembourg
| | - Ludmila Novakova
- National Reference Laboratory for Haemophilus Infections, Centre for Epidemiology and Microbiology, National Institute of Public Health, Prague, Czech Republic
| | - Shahin Oftadeh
- NSW Pneumococcal Reference Laboratory, Institute of Clinical Pathology and Medical Research - NSW Health Pathology, Sydney, NSW, Australia
| | - Amaresh Perez-Argüello
- Microbiology Department, Institut Recerca Sant Joan de Déu, Hospital Sant Joan de Deu, Barcelona, Spain
| | - Maria Pérez-Vázquez
- Laboratorio de Referencia e Investigación en Resistencia a Antibióticos e Infecciones Relacionadas con la Asistencia Sanitaria, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain; CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain
| | | | | | - Benoit Prevost
- National Belgian Reference Centre for Haemophilus influenzae, Laboratoire des Hôpitaux Universitaires de Bruxelles-Universitair Laboratorium van Brussel, Brussels, Belgium
| | | | - Assaf Rokney
- Public Health Laboratories-Jerusalem, Public Health Services, Ministry of Health, Jerusalem, Israel
| | - Merav Ron
- Public Health Laboratories-Jerusalem, Public Health Services, Ministry of Health, Jerusalem, Israel
| | | | - Kevin J Scott
- Bacterial Respiratory Infection Service, Scottish Microbiology Reference Laboratories, Glasgow Royal Infirmary, Glasgow, UK
| | - Carmen Sheppard
- Respiratory and Vaccine Preventable Bacteria Reference Unit, UK Health Security Agency, London, UK
| | - Lotta Siira
- Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Vitali Sintchenko
- NSW Pneumococcal Reference Laboratory, Institute of Clinical Pathology and Medical Research - NSW Health Pathology, Sydney, NSW, Australia; Sydney Institute for Infectious Diseases, University of Sydney, NSW, Australia
| | - Anna Skoczyńska
- National Reference Centre for Bacterial Meningitis, Department of Epidemiology and Clinical Microbiology, National Medicines Institute, Warsaw, Poland
| | | | | | - Andrew J Smith
- Bacterial Respiratory Infection Service, Scottish Microbiology Reference Laboratories, Glasgow Royal Infirmary, Glasgow, UK; College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Anneke Steens
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - Muhamed-Kheir Taha
- Institut Pasteur, Univeristé Paris Cité, Invasive Bacterial Infections Unit and National Reference Centre for Meningococci and Haemophilus influenzae, Paris, France
| | | | - Georgina Tzanakaki
- National Meningitis Reference Laboratory, Department of Public Health Policy, School of Public Health, University of West Attica, Athens, Greece
| | - Anni Vainio
- Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Mark P G van der Linden
- Department of Medical Microbiology, German National Reference Centre for Streptococci, University Hospital RWTH Aachen, Aachen, Germany
| | - Nina M van Sorge
- Department of Medical Microbiology and Infection Prevention, and Netherlands Reference Laboratory for Bacterial Meningitis, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Emmanuelle Varon
- Laboratory of Medical Biology and National Reference Centre for Pneumococci, Intercommunal Hospital of Créteil, Créteil, France
| | - Sandra Vohrnova
- National Reference Laboratory for Streptococcal Infections, Centre for Epidemiology and Microbiology, National Institute of Public Health, Prague, Czech Republic
| | - Anne von Gottberg
- Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases, Division of the National Health Laboratory Service, Johannesburg, South Africa
| | - Jose Yuste
- National Center for Microbiology and CIBER of Respiratory Research, Instituto de Salud Carlos III, Madrid, Spain
| | - Rosemeire Zanella
- National Laboratory for Meningitis and Pneumococcal Infections, Center of Bacteriology, Institute Adolfo Lutz, São Paulo, Brazil
| | - Fei Zhou
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Angela B Brueggemann
- Nuffield Department of Population Health, Big Data Institute, University of Oxford, Oxford, UK.
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11
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Slotved HC, Fuursted K. 1 + 1 dose schedule for pneumococcal child vaccination: new normal? Lancet Infect Dis 2023:S1473-3099(23)00065-8. [PMID: 37062299 DOI: 10.1016/s1473-3099(23)00065-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 02/03/2023] [Indexed: 04/18/2023]
Affiliation(s)
- Hans-Christian Slotved
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen DK-2300, Denmark.
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen DK-2300, Denmark
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12
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Bock M, Theut AM, van Hasselt JGC, Wang H, Fuursted K, Høiby N, Lerche CJ, Ihlemann N, Gill S, Christiansen U, Nielsen HL, Lemming L, Elming H, Povlsen JA, Bruun NE, Høfsten D, Fosbøl EL, Køber L, Schultz M, Pries-Heje MM, Kristensen JH, Christensen JJ, Rosenvinge FS, Pedersen CT, Helweg-Larsen J, Tønder N, Iversen K, Bundgaard H, Moser C. Attainment of target antibiotic levels by oral treatment of left-sided infective endocarditis: a POET substudy. Clin Infect Dis 2023:7083738. [PMID: 36947131 DOI: 10.1093/cid/ciad168] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/14/2023] [Accepted: 03/20/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND In the POET (Partial Oral Endocarditis Treatment) trial, oral step-down therapy was noninferior to full-length intravenous antibiotic administration. The aim of the present study was to perform pharmacokinetic/pharmacodynamic analyses for oral treatments of infective endocarditis to assess the probabilities of target attainment (PTAs). METHODS Plasma concentrations of oral antibiotics were measured at day 1 and 5. Minimal inhibitory concentrations (MICs) were determined for the bacteria causing infective endocarditis (streptococci, staphylococci, or enterococci). Pharmacokinetic/pharmacodynamic targets were predefined according to literature using time above MIC or the ratio of area under the curve to MIC. Population pharmacokinetic modeling and pharmacokinetic/pharmacodynamic analyses were done for amoxicillin, dicloxacillin, linezolid, moxifloxacin, and rifampicin, and PTAs were calculated. RESULTS A total of 236 patients participated in this POET substudy. For amoxicillin and linezolid, the PTAs were 88%-100%. For moxifloxacin and rifampicin, the PTAs were 71%-100%. Using a clinical breakpoint for staphylococci, the PTAs for dicloxacillin were 9%-17%.Seventy-four patients at day 1 and 65 patients at day 5 had available pharmacokinetic and MIC data for two oral antibiotics. Of those, 13 patients at day 1 and 14 patients at day 5 did only reach the target for one antibiotic. One patient did not reach target for any of the two antibiotics. CONCLUSION For the individual orally administered antibiotic, the majority of patients reached the target level. Patients with sub-target levels were compensated by the administration of two different antibiotics. The findings support the efficacy of oral step-down antibiotic treatment in patients with infective endocarditis.
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Affiliation(s)
- Magnus Bock
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Anna Marie Theut
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Johan G C van Hasselt
- Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Hengzhuang Wang
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Niels Høiby
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Christian Johann Lerche
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Microbiology, Copenhagen University Hospital, Hvidovre, Denmark
| | - Nikolaj Ihlemann
- Department of Cardiology, Bispebjerg Hospital, Copenhagen, Denmark
| | - Sabine Gill
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | | | - Hans Linde Nielsen
- Department of Clinical Microbiology, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Lars Lemming
- Department of Clinical Microbiology, Aarhus University Hospital, Aarhus, Denmark
| | - Hanne Elming
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark
| | - Jonas A Povlsen
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark
| | - Niels Eske Bruun
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Dan Høfsten
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Emil L Fosbøl
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Lars Køber
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Martin Schultz
- Department of Internal Medicine, Copenhagen University Hospital, Herlev-Gentofte, Copenhagen, Denmark
| | - Mia M Pries-Heje
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Jonas Henrik Kristensen
- Department of Cardiology, Copenhagen University Hospital, Herlev-Gentofte, Copenhagen, Denmark
- Department of Emergency Medicine, Copenhagen University Hospital, Herlev-Gentofte, Copenhagen, Denmark
| | - Jens Jørgen Christensen
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- The Regional Department of Clinical Microbiology, Region Zealand, Denmark
| | - Flemming S Rosenvinge
- Department of Clinical Microbiology, Odense University Hospital, Odense, Denmark
- Research Unit of Clinical Microbiology, University of Southern Denmark, Odense, Denmark
| | - Christian Torp Pedersen
- Department of Cardiology, Nordsjællands Hospital, Hillerød, Denmark
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Jannik Helweg-Larsen
- Department of Infectious Diseases, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Niels Tønder
- Department of Cardiology, Nordsjællands Hospital, Hillerød, Denmark
| | - Kasper Iversen
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Emergency Medicine, Copenhagen University Hospital, Herlev-Gentofte, Copenhagen, Denmark
| | - Henning Bundgaard
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Claus Moser
- Department of Clinical Microbiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
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Rasmussen SL, Strandbygaard LL, Fuursted K, Kragholm KH, Leutscher P, Rasmussen C. Antibody response in patients with autoimmune inflammatory rheumatic disease after pneumococcal polysaccharide prime vaccination or revaccination. Scand J Rheumatol 2023; 52:174-180. [PMID: 35049423 DOI: 10.1080/03009742.2021.2008602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The aim of the study was to assess the pneumococcal antibody response in autoimmune inflammatory rheumatic disease (AIIRD) patients receiving 23-valent pneumococcal polysaccharide vaccine (PPV23) as a prime vaccination or revaccination. METHOD Antibodies to 12 serotypes occurring in the commonly applied pneumococcal vaccines in Denmark were measured in AIIRD patients receiving biological disease-modifying anti-rheumatic drug (bDMARD) treatment for rheumatoid arthritis, spondyloarthritis, or psoriatic arthritis. Patients with a non-protective level of pneumococcal antibodies (geometric mean pneumococcal antibody level < 1 μg/mL) were invited to receive vaccination with PPV23 followed by control of antibody titre 3 months later. RESULTS In total, 224 (74%) of 301 patients were included in the analyses, of whom 126 patients had previously received PPV23 vaccination. Post-vaccination antibody measurement revealed that only 80 patients (36%) achieved a protective level of antibodies. In a multivariable logistic regression analysis, significantly more patients without a previous PPV23 vaccination history achieved a protective antibody level compared with patients with a history of PPV23 vaccination less than 5 years ago (p = 0.005). This difference was not seen when comparing the former group with patients vaccinated 5 years ago or more. Methotrexate (MTX) treatment at the time of vaccination was associated with a non-protective antibody level (p < 0.001). CONCLUSION Only 36% of patients with a non-protective antibody level achieved a protective level in response to pneumococcal vaccination. Pneumococcal vaccination within the last 5 years and MTX treatment at the time of vaccination were independently associated with a poor antibody response.
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Affiliation(s)
- S L Rasmussen
- Department of Rheumatology, North Denmark Regional Hospital, Hjoerring, Denmark.,Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark
| | - L L Strandbygaard
- Department of Rheumatology, North Denmark Regional Hospital, Hjoerring, Denmark
| | - K Fuursted
- Statens Serum Institut, Bacteriological Special Diagnostics and Reference, Copenhagen, Denmark
| | - K H Kragholm
- Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - P Leutscher
- Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - C Rasmussen
- Department of Rheumatology, North Denmark Regional Hospital, Hjoerring, Denmark.,Centre for Clinical Research, North Denmark Regional Hospital, Hjoerring, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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14
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Eriksen HB, Fuursted K, Jensen A, Jensen CS, Nielsen X, Christensen JJ, Shewmaker P, Rebelo AR, Aarestrup FM, Schønning K, Slotved HC. Predicting β-lactam susceptibility from the genome of Streptococcus pneumoniae and other mitis group streptococci. Front Microbiol 2023; 14:1120023. [PMID: 36937294 PMCID: PMC10018206 DOI: 10.3389/fmicb.2023.1120023] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/13/2023] [Indexed: 03/06/2023] Open
Abstract
Introduction For Streptococcus pneumoniae, β-lactam susceptibility can be predicted from the amino acid sequence of the penicillin-binding proteins PBP1a, PBP2b, and PBP2x. The combination of PBP-subtypes provides a PBP-profile, which correlates to a phenotypic minimal inhibitory concentration (MIC). The non-S. pneumoniae Mitis-group streptococci (MGS) have similar PBPs and exchange pbp-alleles with S. pneumoniae. We studied whether a simple BLAST analysis could be used to predict phenotypic susceptibility in Danish S. pneumoniae isolates and in internationally collected MGS. Method Isolates with available WGS and phenotypic susceptibility data were included. For each isolate, the best matching PBP-profile was identified by BLAST analysis. The corresponding MICs for penicillin and ceftriaxone was retrieved. Category agreement (CA), minor-, major-, and very major discrepancy was calculated. Genotypic-phenotypic accuracy was examined with Deming regression. Results Among 88 S. pneumoniae isolates, 55 isolates had a recognized PBP-profile, and CA was 100% for penicillin and 98.2% for ceftriaxone. In 33 S. pneumoniae isolates with a new PBP-profile, CA was 90.9% (penicillin) and 93.8% (ceftriaxone) using the nearest recognized PBP-profile. Applying the S. pneumoniae database to non-S. pneumoniae MGS revealed that none had a recognized PBP-profile. For Streptococcus pseudopneumoniae, CA was 100% for penicillin and ceftriaxone in 19 susceptible isolates. In 33 Streptococcus mitis isolates, CA was 75.8% (penicillin) and 86.2% (ceftriaxone) and in 25 Streptococcus oralis isolates CA was 8% (penicillin) and 100% (ceftriaxone). Conclusion Using a simple BLAST analysis, genotypic susceptibility prediction was accurate in Danish S. pneumoniae isolates, particularly in isolates with recognized PBP-profiles. Susceptibility was poorly predicted in other MGS using the current database.
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Affiliation(s)
- Helle Brander Eriksen
- Department of Clinical Microbiology, Herlev and Gentofte Hospital, Herlev, Denmark
- *Correspondence: Helle Brander Eriksen,
| | - Kurt Fuursted
- Department of Bacteria, Parasites, and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Anders Jensen
- Department of Clinical Microbiology, Sygehus Lillebælt, Vejle, Denmark
| | | | - Xiaohui Nielsen
- The Regional Department of Clinical Microbiology, Slagelse, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jens Jørgen Christensen
- The Regional Department of Clinical Microbiology, Slagelse, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | | | - Ana Rita Rebelo
- Research Group for Genomic Epidemiology, National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Frank Møller Aarestrup
- Research Group for Genomic Epidemiology, National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Kristian Schønning
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark
| | - Hans-Christian Slotved
- Department of Bacteria, Parasites, and Fungi, Statens Serum Institut, Copenhagen, Denmark
- Hans-Christian Slotved,
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15
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Slotved HC, Johannesen TB, Stegger M, Fuursted K. Evaluation of molecular typing for national surveillance of invasive clinical Haemophilus influenzae isolates from Denmark. Front Microbiol 2022; 13:1030242. [PMID: 36466693 PMCID: PMC9712784 DOI: 10.3389/fmicb.2022.1030242] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 10/24/2022] [Indexed: 08/23/2023] Open
Abstract
Haemophilus influenzae is a gram-negative coccobacillus known to cause respiratory and invasive infections. It can possess a polysaccharide capsule that can be categorized into six different serotypes (i.e., Hia, Hib, Hic, Hid, Hie, and Hif) and non-encapsulated strains that are defined as non-typeable. Furthermore, H. influenzae can be characterized into eight biotypes (I-VIII). Traditionally, isolates have been serotyped and biotyped using phenotypic methods; however, these methods are not always reliable. In this study, we evaluate the use of whole-genome sequencing (WGS) for national surveillance and characterization of clinical Danish H. influenzae isolates. In Denmark, all clinical invasive isolates between 2014 and 2021 have been serotyped using a traditional phenotypic latex agglutination test as well as in silico serotyped using the in silico programs "hinfluenzae_capsule_characterization" and "hicap" to compare the subsequent serotypes. Moreover, isolates were also biotyped using a phenotypic enzyme test and the genomic data for the detection of the genes encoding ornithine, tryptophan, and urease. The results showed a 99-100% concordance between the two genotypic approaches and the phenotypic serotyping, respectively. The biotyping showed a 95% concordance between genotyping and phenotyping. In conclusion, our results show that in a clinical surveillance setting, in silico serotyping and WGS-based biotyping are a robust and reliable approach for typing clinical H. influenzae isolates.
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Affiliation(s)
- Hans-Christian Slotved
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
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16
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Badreldin I, Justesen B, Lyhne N, Fuursted K, Vestergaard AH, Justesen US. Identification of microorganisms in patients with keratitis by next‐generation sequencing. Acta Ophthalmol 2022; 101:353-354. [PMID: 36354043 DOI: 10.1111/aos.15285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/23/2022] [Accepted: 10/29/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Iman Badreldin
- Department of Ophthalmology Odense University Hospital Odense Denmark
| | - Birgitte Justesen
- Department of Ophthalmology Odense University Hospital Odense Denmark
| | - Niels Lyhne
- Department of Ophthalmology Odense University Hospital Odense Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites & Fungi Statens Serum Institut Copenhagen Denmark
| | | | - Ulrik S. Justesen
- Department of Clinical Microbiology Odense University Hospital Odense Denmark
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17
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Andersson T, Makenga G, Francis F, Minja DTR, Overballe-Petersen S, Tang MHE, Fuursted K, Baraka V, Lood R. Enrichment of antibiotic resistance genes within bacteriophage populations in saliva samples from individuals undergoing oral antibiotic treatments. Front Microbiol 2022; 13:1049110. [PMID: 36425042 PMCID: PMC9678940 DOI: 10.3389/fmicb.2022.1049110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 10/14/2022] [Indexed: 11/11/2022] Open
Abstract
Spread of antibiotic resistance is a significant challenge for our modern health care system, and even more so in developing countries with higher prevalence of both infections and resistant bacteria. Faulty usage of antibiotics has been pinpointed as a driving factor in spread of resistant bacteria through selective pressure. However, horizontal gene transfer mediated through bacteriophages may also play an important role in this spread. In a cohort of Tanzanian patients suffering from bacterial infections, we demonstrate significant differences in the oral microbial diversity between infected and non-infected individuals, as well as before and after oral antibiotics treatment. Further, the resistome carried both by bacteria and bacteriophages vary significantly, with blaCTX-M1 resistance genes being mobilized and enriched within phage populations. This may impact how we consider spread of resistance in a biological context, as well in terms of treatment regimes.
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Affiliation(s)
- Tilde Andersson
- Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Geofrey Makenga
- National Institute for Medical Research, Tanga Center, Tanzania
| | - Filbert Francis
- National Institute for Medical Research, Tanga Center, Tanzania
- Karolinska Institutet, Solna, Sweden
| | | | | | - Man-Hung Eric Tang
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Kurt Fuursted
- Bacterial Reference Center, Statens Serum Institute, Copenhagen, Denmark
| | - Vito Baraka
- National Institute for Medical Research, Tanga Center, Tanzania
| | - Rolf Lood
- Department of Clinical Sciences, Lund University, Lund, Sweden
- *Correspondence: Rolf Lood,
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18
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Andersson T, Adell AD, Moreno‐Switt AI, Spégel P, Turner C, Overballe‐Petersen S, Fuursted K, Lood R. Biogeographical variation in antimicrobial resistance in rivers is influenced by agriculture and is spread through bacteriophages. Environ Microbiol 2022; 24:4869-4884. [PMID: 35799549 PMCID: PMC9796506 DOI: 10.1111/1462-2920.16122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 06/29/2022] [Indexed: 01/01/2023]
Abstract
Antibiotic resistance is currently an extensive medical challenge worldwide, with global numbers increasing steadily. Recent data have highlighted wastewater treatment plants as a reservoir of resistance genes. The impact of these findings for human health can best be summarized using a One Health concept. However, the molecular mechanisms impacting resistance spread have not been carefully evaluated. Bacterial viruses, that is bacteriophages, have recently been shown to be important mediators of bacterial resistance genes in environmental milieus and are transferrable to human pathogens. Herein, we investigated the biogeographical impact on resistance spread through river-borne bacteriophages using amplicon deep sequencing of the microbiota, absolute quantification of resistance genes using ddPCR, and phage induction capacity within wastewater. Microbial biodiversity of the rivers is significantly affected by river site, surrounding milieu and time of sampling. Furthermore, areas of land associated with agriculture had a significantly higher ability to induce bacteriophages carrying antibiotic resistance genes, indicating their impact on resistance spread. It is imperative that we continue to analyse global antibiotic resistance problem from a One Health perspective to gain novel insights into mechanisms of resistance spread.
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Affiliation(s)
| | - Aiko D. Adell
- Escuela de Medicina Veterinaria, Facultad de Ciencias de la VidaUniversidad Andres BelloSantiagoChile,Millennium Initiative for Collaborative Research On Bacterial Resistance (MICROB‐R)SantiagoChile
| | - Andrea I. Moreno‐Switt
- Millennium Initiative for Collaborative Research On Bacterial Resistance (MICROB‐R)SantiagoChile,Escuela de Medicina Veterinaria, Facultad de Agronomía e Ingeniería Forestal, Facultad de Ciencias Biológicas y Facultad de MedicinaPontificia Universidad Católica de ChileSantiagoChile
| | - Peter Spégel
- Department of ChemistryLund UniversityLundSweden
| | | | | | - Kurt Fuursted
- Statens Serum InstituteBacterial Reference CenterCopenhagenDenmark
| | - Rolf Lood
- Department of Clinical SciencesLund UniversityLundSweden
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19
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Møller KV, Nguyen HTT, Mørch MGM, Hesselager MO, Mulder FAA, Fuursted K, Olsen A. A Lactobacilli diet that confers MRSA resistance causes amino acid depletion and increased antioxidant levels in the C. elegans host. Front Microbiol 2022; 13:886206. [PMID: 35966651 PMCID: PMC9366307 DOI: 10.3389/fmicb.2022.886206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
Probiotic bacteria are increasingly popular as dietary supplements and have the potential as alternatives to traditional antibiotics. We have recently shown that pretreatment with Lactobacillus spp. Lb21 increases the life span of C. elegans and results in resistance toward pathogenic methicillin-resistant Staphylococcus aureus (MRSA). The Lb21-mediated MRSA resistance is dependent on the DBL-1 ligand of the TGF-β signaling pathway. However, the underlying changes at the metabolite level are not understood which limits the application of probiotic bacteria as timely alternatives to traditional antibiotics. In this study, we have performed untargeted nuclear magnetic resonance-based metabolic profiling. We report the metabolomes of Lactobacillus spp. Lb21 and control E. coli OP50 bacteria as well as the nematode-host metabolomes after feeding with these diets. We identify 48 metabolites in the bacteria samples and 51 metabolites in the nematode samples and 63 across all samples. Compared to the control diet, the Lactobacilli pretreatment significantly alters the metabolic profile of the worms. Through sparse Partial Least Squares discriminant analyses, we identify the 20 most important metabolites distinguishing probiotics from the regular OP50 food and worms fed the two different bacterial diets, respectively. Among the changed metabolites, we find lower levels of essential amino acids as well as increased levels of the antioxidants, ascorbate, and glutathione. Since the probiotic diet offers significant protection against MRSA, these metabolites could provide novel ways of combatting MRSA infections.
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Affiliation(s)
- Katrine Vogt Møller
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark
| | - Hien Thi Thu Nguyen
- Department of Molecular Diagnostics, Aalborg University Hospital, Aalborg, Denmark
| | | | | | - Frans A. A. Mulder
- Interdisciplinary Nanoscience Center iNANO and Department of Chemistry, Aarhus University, Aarhus, Denmark
| | | | - Anders Olsen
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark
- *Correspondence: Anders Olsen
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20
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Amato E, Riess M, Thomas-Lopez D, Linkevicius M, Pitkänen T, Wołkowicz T, Rjabinina J, Jernberg C, Hjertqvist M, MacDonald E, Antony-Samy JK, Dalsgaard Bjerre K, Salmenlinna S, Fuursted K, Hansen A, Naseer U. Epidemiological and microbiological investigation of a large increase in vibriosis, northern Europe, 2018. Euro Surveill 2022; 27:2101088. [PMID: 35837965 PMCID: PMC9284918 DOI: 10.2807/1560-7917.es.2022.27.28.2101088] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BackgroundVibriosis cases in Northern European countries and countries bordering the Baltic Sea increased during heatwaves in 2014 and 2018.AimWe describe the epidemiology of vibriosis and the genetic diversity of Vibrio spp. isolates from Norway, Sweden, Denmark, Finland, Poland and Estonia in 2018, a year with an exceptionally warm summer.MethodsIn a retrospective study, we analysed demographics, geographical distribution, seasonality, causative species and severity of non-travel-related vibriosis cases in 2018. Data sources included surveillance systems, national laboratory notification databases and/or nationwide surveys to public health microbiology laboratories. Moreover, we performed whole genome sequencing and multilocus sequence typing of available isolates from 2014 to 2018 to map their genetic diversity.ResultsIn 2018, we identified 445 non-travel-related vibriosis cases in the study countries, considerably more than the median of 126 cases between 2014 and 2017 (range: 87-272). The main reported mode of transmission was exposure to seawater. We observed a species-specific geographical disparity of vibriosis cases across the Nordic-Baltic region. Severe vibriosis was associated with infections caused by Vibrio vulnificus (adjOR: 17.2; 95% CI: 3.3-90.5) or Vibrio parahaemolyticus (adjOR: 2.1; 95% CI: 1.0-4.5), age ≥ 65 years (65-79 years: adjOR: 3.9; 95% CI: 1.7-8.7; ≥ 80 years: adjOR: 15.5; 95% CI: 4.4-54.3) or acquiring infections during summer (adjOR: 5.1; 95% CI: 2.4-10.9). Although phylogenetic analysis revealed diversity between Vibrio spp. isolates, two V. vulnificus clusters were identified.ConclusionShared sentinel surveillance for vibriosis during summer may be valuable to monitor this emerging public health issue.
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Affiliation(s)
- Ettore Amato
- Department of Infection Control and Preparedness, Norwegian Institute of Public Health, Oslo, Norway,European Programme for Public Health Microbiology Training (EUPHEM), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - Maximilian Riess
- Department of Microbiology, Public Health Agency of Sweden, Department of Microbiology, Stockholm, Sweden,European Programme for Public Health Microbiology Training (EUPHEM), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - Daniel Thomas-Lopez
- Department of Bacteria, Parasites and Fungi, Division of Infectious Disease Preparedness, Statens Serum Institut, Copenhagen, Denmark,European Programme for Public Health Microbiology Training (EUPHEM), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - Marius Linkevicius
- Finnish Institute for Health and Welfare, Department of Health Security, Helsinki, Finland,European Programme for Public Health Microbiology Training (EUPHEM), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - Tarja Pitkänen
- Finnish Institute for Health and Welfare, Department of Health Security, Kuopio, Finland,University of Helsinki, Helsinki, Finland
| | | | - Jelena Rjabinina
- Health Board, Department of CD Surveillance and Control, Tallinn, Estonia
| | - Cecilia Jernberg
- Department of Microbiology, Public Health Agency of Sweden, Department of Microbiology, Stockholm, Sweden
| | - Marika Hjertqvist
- Public Health Agency of Sweden, Department of Communicable Disease Control and Health Protection, Stockholm, Sweden
| | - Emily MacDonald
- Department of Infection Control and Preparedness, Norwegian Institute of Public Health, Oslo, Norway
| | | | - Karsten Dalsgaard Bjerre
- Data Integration and Analysis, Division of Infectious Disease Preparedness, Statens Serum Institut, Copenhagen, Denmark
| | - Saara Salmenlinna
- Finnish Institute for Health and Welfare, Department of Health Security, Helsinki, Finland
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Division of Infectious Disease Preparedness, Statens Serum Institut, Copenhagen, Denmark
| | - Anette Hansen
- Public Health Agency of Sweden, Department of Communicable Disease Control and Health Protection, Stockholm, Sweden
| | - Umaer Naseer
- Department of Infection Control and Preparedness, Norwegian Institute of Public Health, Oslo, Norway
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21
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Bundgaard JS, Iversen K, Pries-Heje M, Ihlemann N, Gill SU, Madsen T, Elming H, Povlsen JA, Bruun NE, Høfsten DE, Fuursted K, Christensen JJ, Schultz M, Rosenvinge F, Helweg-Larsen J, Køber L, Torp-Pedersen C, Fosbøl EL, Tønder N, Moser C, Bundgaard H, Mogensen UM. Self-assessed health status and associated mortality in endocarditis: secondary findings from the POET trial. Qual Life Res 2022; 31:2655-2662. [PMID: 35349038 DOI: 10.1007/s11136-022-03126-x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Self-assessed poor health status is associated with increased risk of mortality in several cardiovascular conditions, but has not been investigated in patients with endocarditis. We examined health status and mortality in patients with endocarditis. METHODS This is a re-specified substudy of the randomized POET endocarditis trial, which included 400 patients. Patients completed the single-question self-assessed health status from the Short-Form 36 questionnaire at time of randomization and were categorized as having poor or non-poor (excellent/very good, good, or fair) health status. Self-assessed health status and all-cause mortality were examined by a Cox regression model. RESULTS Self-assessed health status was completed by 266 (67%) patients with a mean age of 68.0 years (± 11.8), 54 (20%) were females, and 86 (32%) had one or more major concurrent medical conditions besides endocarditis. The self-assessed health status distribution was poor (n = 21, 8%) and non-poor (n = 245, 92%). The median follow-up was 3.3 years and death occurred in 9 (43%) and 48 (20%) patients reporting poor and non-poor health status, respectively, and mortality rates [mortality/100 person-years, 95% confidence interval (CI)] were 18.1 (95% CI 9.4-34.8) and 5.4 (95% CI 4.1-7.2), i.e., the crude hazard ratio for death was 3.4 (95% CI: 1.7-7.0, p < 0.01). CONCLUSION Self-assessed poor health status compared with non-poor health status as assessed by a single question was associated with a threefold increased long-term mortality in patients with endocarditis. POET ClinicalTrials.gov number, NCT01375257. TRIAL REGISTRY POET ClinicalTrials.gov number, NCT01375257.
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Affiliation(s)
- Johan S Bundgaard
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark.
| | - Kasper Iversen
- Department of Cardiology, Herlev-Gentofte University Hospital, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mia Pries-Heje
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Nikolaj Ihlemann
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Sabine U Gill
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | - Trine Madsen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Hanne Elming
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark
| | - Jonas A Povlsen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Niels E Bruun
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark.,Institute of Clinical Medicine, Copenhagen University, Copenhagen, Denmark.,Clinical Institute, Aalborg University, Aalborg, Denmark
| | - Dan E Høfsten
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institute, Copenhagen, Denmark
| | - Jens J Christensen
- The Regional Department of Clinical Microbiology, Region Zealand Slagelse Hospital, Region Zealand, Denmark
| | - Martin Schultz
- Department of Cardiology, Herlev-Gentofte University Hospital, Copenhagen, Denmark
| | - Flemming Rosenvinge
- Department of Clinical Microbiology, Odense University Hospital, Odense, Denmark
| | - Jannik Helweg-Larsen
- Department of Infectious Diseases, Copenhagen University Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Lars Køber
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Christian Torp-Pedersen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark.,Department of Cardiology, Nordsjaellands Hospital, Hillerød, Denmark
| | - Emil L Fosbøl
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark
| | - Niels Tønder
- Department of Cardiology, North Zealand University Hospital, Hillerød, Denmark
| | - Claus Moser
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.,Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Henning Bundgaard
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ulrik M Mogensen
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100, Copenhagen, Denmark.,Department of Cardiology, Zealand University Hospital, Roskilde, Denmark
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22
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Yamba Yamba L, Uddén F, Fuursted K, Ahl J, Slotved HC, Riesbeck K. Extensive/Multidrug-Resistant Pneumococci Detected in Clinical Respiratory Tract Samples in Southern Sweden Are Closely Related to International Multidrug-Resistant Lineages. Front Cell Infect Microbiol 2022; 12:824449. [PMID: 35392607 PMCID: PMC8981583 DOI: 10.3389/fcimb.2022.824449] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Background/ObjectiveThe frequencies of non-susceptibility against common antibiotics among pneumococci vary greatly across the globe. When compared to other European countries antibiotic resistance against penicillin and macrolides has been uncommon in Sweden in recent years. Multidrug resistance (MDR) is, however, of high importance since relevant treatment options are scarce. The purpose of this study was to characterize the molecular epidemiology, presence of resistance genes and selected virulence genes of extensively drug-resistant (XDR) (n=15) and MDR (n=10) Streptococcus pneumoniae detected in clinical respiratory tract samples isolated from patients in a southern Swedish county 2016-2018. With the aim of relating them to global MDR pneumococci.MethodsWhole genome sequencing (WGS) was performed to determine molecular epidemiology, resistance genes and presence of selected virulence factors. Antimicrobial susceptibility profiles were determined using broth microdilution testing. Further analyses were performed on isolates from the study and from the European nucleotide archive belonging to global pneumococcal sequence cluster (GPSC) 1 (n=86), GPSC9 (n=55) and GPSC10 (n=57). Bacteria were analyzed regarding selected virulence determinants (pilus islet 1, pilus islet 2 and Zinc metalloproteinase C) and resistance genes.ResultsNineteen of 25 isolates were related to dominant global MDR lineages. Seventeen belonged to GPSC1, GPSC9 or GPSC10 with MDR non-PCV serotypes in GPSC9 (serotype 15A and 15C) as well as GPSC10 (serotype 7B, 15B and serogroup 24). Pilus islet-1 and pilus islet-2 were present in most sequence types belonging to GPSC1 and in two isolates within GPSC9 but were not detected in isolates belonging to GPSC10. Zinc metalloproteinase C was well conserved within all analyzed isolates belonging to GPSC9 but were not found in isolates from GPSC1 or GPSC10.ConclusionsAlthough MDR S. pneumoniae is relatively uncommon in Sweden compared to other countries, virulent non-PCV serotypes that are MDR may become an increasing problem, particularly from clusters GPSC9 and GPSC10. Since the incidence of certain serotypes (3, 15A, and 19A) found among our MDR Swedish study isolates are persistent or increasing in invasive pneumococcal disease further surveillance is warranted.
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Affiliation(s)
- Linda Yamba Yamba
- Clinical Microbiology, Department of Translational Medicine, Faculty of Medicine, Lund University, Malmö, Sweden
| | - Fabian Uddén
- Clinical Microbiology, Department of Translational Medicine, Faculty of Medicine, Lund University, Malmö, Sweden
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Jonas Ahl
- Infectious Diseases, Department of Translational Medicine, Faculty of Medicine, Lund University, Malmö, Sweden
| | - Hans-Christian Slotved
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Kristian Riesbeck
- Clinical Microbiology, Department of Translational Medicine, Faculty of Medicine, Lund University, Malmö, Sweden
- *Correspondence: Kristian Riesbeck,
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Ring HC, Thorsen J, Fuursted K, Bjarnsholt T, Bay L, Egeberg A, Ingham AC, Vedel Nielsen H, Frew WJ, Saunte D, Thomsen SF, Jemec GB. Amplicon sequencing demonstrates comparable follicular mycobiomes in patients with hidradenitis suppurativa compared with healthy controls. J Eur Acad Dermatol Venereol 2022; 36:e580-e583. [PMID: 35285081 DOI: 10.1111/jdv.18075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/02/2022] [Indexed: 11/28/2022]
Affiliation(s)
- H C Ring
- Department of Dermato-Venereology & Wound Healing Centre, Bispebjerg Hospital and Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Dermatology, Zealand University Hospital, Roskilde, Denmark
| | - J Thorsen
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.,Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - K Fuursted
- Department of microbiology and infection control, Statens Serum Institut, Copenhagen, Denmark
| | - T Bjarnsholt
- Costerton Biofilm Center, University of Copenhagen, Denmark.,Department of Clinical Microbiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - L Bay
- Costerton Biofilm Center, University of Copenhagen, Denmark
| | - A Egeberg
- Department of Dermato-Venereology & Wound Healing Centre, Bispebjerg Hospital and Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - A C Ingham
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - H Vedel Nielsen
- Department of microbiology and infection control, Statens Serum Institut, Copenhagen, Denmark.,Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - W J Frew
- Department of Dermatology, Liverpool Hospital, Sydney, Australia
| | - Dml Saunte
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark.,Department of Dermatology, Zealand University Hospital, Roskilde, Denmark.,Department of Clinical Medicine, Faculthy of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - S F Thomsen
- Department of Dermato-Venereology & Wound Healing Centre, Bispebjerg Hospital and Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - G B Jemec
- Department of Dermatology, Zealand University Hospital, Roskilde, Denmark.,Department of Clinical Medicine, Faculthy of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
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24
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Bundgaard JS, Iversen K, Pries-Heje M, Ihlemann N, Bak TS, Østergaard L, Gill SU, Madsen T, Elming H, Jensen KT, Bruun NE, Høfsten DE, Fuursted K, Christensen JJ, Schultz M, Rosenvinge F, Schønheyder HC, Helweg-Larsen J, Køber L, Torp-Pedersen C, Fosbøl EL, Tønder N, Moser C, Bundgaard H, Mogensen UM. The impact of partial-oral endocarditis treatment on anxiety and depression in the POET trial. J Psychosom Res 2022; 154:110718. [PMID: 35078079 DOI: 10.1016/j.jpsychores.2022.110718] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 10/19/2022]
Abstract
BACKGROUND The Partial-Oral versus Intravenous Antibiotic Treatment of Endocarditis Trial (POET) found that partial-oral outpatient treatment was non-inferior to conventional in-hospital intravenous treatment in patients with left-sided infective endocarditis. We examined the impact of treatment strategy on levels of anxiety and depression. METHODS Patients completed the Hospital Anxiety and Depression Scale (HADS) at randomization, at antibiotic completion, and after month 3 and month 6. Changes in anxiety and depression (each subdimension 0-21, high scores indicating worse) were calculated using a repeated measure analysis of covariance model with primary assessment after 6 months. Change in score of 1.7 represented a minimal clinical important difference (MCID). RESULTS Among the 400 patients enrolled in the POET trial, 263 (66%) completed HADS at randomization with reassessment rates of 86-87% at the three subsequent timepoints. Patients in the partial-oral group and the intravenous group had similar improvements after 6 months in levels of anxiety (-1.8 versus -1.6, P = 0.62) and depression (-2.1 versus -1.9, P = 0.63), although patients in the partial-oral group had numerically lower levels of anxiety and depression throughout. An improvement in MCID scores after 6 months was reported by 47% versus 45% (p = 0.80) patients for anxiety and by 51% versus 54% (p = 0.70) for depression. CONCLUSION Patients with endocarditis receiving partial-oral outpatient treatment reported similar significant improvements in anxiety and depression at 6 months, as compared to conventionally treated, but numerically lower levels throughout. These findings support the usefulness of partial-oral treatment.
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Affiliation(s)
- Johan S Bundgaard
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
| | - Kasper Iversen
- Department of Cardiology, Herlev-Gentofte University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mia Pries-Heje
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Nikolaj Ihlemann
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Theis S Bak
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Lauge Østergaard
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Cardiology, Bispebjerg-Frederiksberg Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Sabine U Gill
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | - Trine Madsen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Hanne Elming
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark
| | - Kaare T Jensen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Niels E Bruun
- Department of Cardiology, Zealand University Hospital, Roskilde, Denmark; Institute of Clinical Medicine, Copenhagen University and Clinical Institute Aalborg University, Denmark
| | - Dan E Høfsten
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Jens J Christensen
- The Regional Department of Clinical Microbiology, Region Zealand Slagelse Hospital, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Martin Schultz
- Department of Cardiology, Herlev-Gentofte University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Flemming Rosenvinge
- Department of Clinical Microbiology, Odense University Hospital, Odense, Denmark
| | - Henrik C Schønheyder
- Department of Clinical Microbiology, Aalborg University Hospital, Aalborg, Denmark
| | - Jannik Helweg-Larsen
- Department of Infectious diseases, Copenhagen University Hospital, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Lars Køber
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Christian Torp-Pedersen
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; Department of cardiology, Nordsjaellands Hospital, Hillerød, Denmark
| | - Emil L Fosbøl
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Niels Tønder
- Department of Cardiology, North Zealand University Hospital, Hillerød, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Claus Moser
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Henning Bundgaard
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ulrik M Mogensen
- Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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25
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Olsen T, Justesen US, Nielsen JC, Jørgensen OD, Foldager Sandgaard NC, Ravn C, Gerdes C, Thøgersen AM, Gill S, Fuursted K, Johansen JB. Microbiological Diagnosis in Cardiac Implantable Electronic Device Infections Detected by Sonication and Next-Generation Sequencing. Heart Rhythm 2022; 19:901-908. [DOI: 10.1016/j.hrthm.2022.01.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/04/2022] [Accepted: 01/31/2022] [Indexed: 12/26/2022]
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26
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Szabados F, Nielsen HV, Fuursted K, Linauskas A, Rasmussen C, Christian Leutscher PD. Screening for Leishmania specific antibodies among patients with rheumatic diseases treated with biological therapy. Eur J Rheumatol 2022; 9:114-115. [PMID: 35156625 PMCID: PMC10176213 DOI: 10.5152/eurjrheum.2022.20105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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27
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Soelberg KK, Datcu R, Jørgensen CA, Faber C, Wied J, Fuursted K, Justesen US. A case report describing Candida albicans endophthalmitis demonstrated by 16S/18S microbiome sequencing. Acta Ophthalmol 2021; 99:e1536-e1537. [PMID: 33426773 DOI: 10.1111/aos.14740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Raluca Datcu
- Department of Clinical Microbiology Hospital South West Jutland Esbjerg Denmark
| | | | - Carsten Faber
- Department of Ophthalmology Rigshospitalet‐Glostrup Glostrup Denmark
| | - Jimmi Wied
- Department of Ophthalmology Odense University Hospital Odense Denmark
| | - Kurt Fuursted
- Statens Serum Institut Department of Bacteria Parasites & Fungi Copenhagen Denmark
| | - Ulrik S. Justesen
- Department of Clinical Microbiology Odense University Hospital Odense Denmark
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28
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Tinggaard M, Slotved HC, Fuursted K, Storgaard M, Dröse S, Johansen IS, Thorsteinsson K, Kronborg G, Lebech AM, Benfield T. Oral and anal carriage of Streptococcus pneumoniae among sexually active men with HIV who have sex with men. J Infect Dis 2021; 225:1575-1580. [PMID: 34622276 DOI: 10.1093/infdis/jiab512] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 10/04/2021] [Indexed: 11/12/2022] Open
Abstract
People with HIV are at increased risk of pneumococcal disease. We investigate oral and anal carriage rates of Streptococcus pneumoniae by molecular methods among 82 men with HIV who have sex with men (MSM). A questionnaire, oral wash and anal swab samples were obtained at baseline and 12 months. Oral carriage rates were 32.9% (27/82) at baseline and 41.7% (30/72) at follow-up. Anal carriage rates were 2.4% (2/82) at baseline and 2.9% (2/70) at follow-up. Genogroup 24 was predominant. Results suggest high oral carriage rates of S. pneumoniae among MSM living with HIV. A minority were anal carriers.
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Affiliation(s)
- Michaela Tinggaard
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
| | - Hans-Christian Slotved
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Merete Storgaard
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Sandra Dröse
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark.,Research Unit for Infectious Diseases, Odense University Hospital, University of Southern Denmark, Denmark
| | - Isik Somuncu Johansen
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark.,Research Unit for Infectious Diseases, Odense University Hospital, University of Southern Denmark, Denmark
| | - Kristina Thorsteinsson
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
| | - Gitte Kronborg
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anne-Mette Lebech
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Department of Infectious Diseases, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Thomas Benfield
- Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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29
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Hansen KH, Justesen US, Kelsen J, Møller K, Helweg-Larsen J, Fuursted K. Diagnostics with clinical microbiome-based identification of microorganisms in patients with brain abscesses-a prospective cohort study. APMIS 2021; 129:641-652. [PMID: 34580914 DOI: 10.1111/apm.13181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 09/20/2021] [Indexed: 01/31/2023]
Abstract
Brain abscesses are often polymicrobial and of unclear primary origin. Here, we compare the use of next-generation sequencing (NGS) technology with classical microbiological diagnostics for identification of clinically relevant microorganisms and describe the microbiome profiling with respect to the primary source of brain abscess. Thirty-six samples from 36 patients, with primary brain abscesses, were subjected to both culture- and 16S/18S rRNA Sanger sequencing-based diagnostics ("standard methods") and compared to a 16S/18S amplicon-based NGS, which were also subjected to a microbiome diversity analyses. Forty-seven species were identified with "standard methods" compared to 96 species with NGS, both confirming and adding to the number of species identified (p < 0.05). The variation of the brain abscess microbiome diversity was not continuous but could be stratified comparing the presumable origin of infection ("dental," "sinus," "disseminated," or "unknown"). Alpha diversity did not differ (p > 0.05) between groups while beta diversity differed significantly (p = 0.003) comparing disseminated vs the other presumable origin of infection. Interesting, clustering was also detected between "dental" and "sinusitis," although not significantly (p = 0.07). Microbiome-based diagnostics can increase sensitivity without losing specificity. The bacterial beta diversity differed between the presumably origin of the brain abscess and might help to clarify the primary source of infection.
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Affiliation(s)
- Katrine Hartung Hansen
- Department of Clinical Microbiology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Microbiology, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Ulrik Stenz Justesen
- Department of Clinical Microbiology, Odense University Hospital, Odense, Denmark
| | - Jesper Kelsen
- Department of Neurosurgery, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Kirsten Møller
- Department of Neuroanesthesiology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jannik Helweg-Larsen
- Department of Infectious Diseases, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Fungi and Parasites, Statens Serum Institut, Copenhagen, Denmark
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30
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Rusan M, Ovesen TOK, Fuursted K, Ovesen T. [The nose can be the focus of treatment and prophylactic approaches against COVID-19]. Ugeskr Laeger 2021; 183:V05210442. [PMID: 34596523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Infection with SARS-CoV-2 frequently commences in the nasal cavity, yet knowledge about this initial virus-host interaction is sparse. In this review, we update our current understanding of SARS-CoV-2 infection via the nasal epithelium and the associated local immune response. Furthermore, we present considerations to how this interaction may influence the clinical course of COVID-19 and the systemic immune response, and lastly touch upon the potential for intranasal vaccination, intranasal antiviral therapies and immunomodulatory approaches.
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31
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Eiset AH, Stensvold CR, Fuursted K, Nielsen HV, Wejse C. High prevalence of methicillin-resistant Staphylococcus aureus, Giardia, and Blastocystis in asymptomatic Syrian asylum seekers in Denmark during 2016 through 2018. J Migr Health 2021; 1-2:100016. [PMID: 34405169 PMCID: PMC8352168 DOI: 10.1016/j.jmh.2020.100016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/02/2020] [Accepted: 12/02/2020] [Indexed: 11/30/2022] Open
Abstract
High prevalence of intestinal parasite colonisation; all were asymptomatic. High prevalence of MRSA; low prevalence of ESBL and CPO. Recommend attention to antimicrobial resistance when attending to Syrian refugees. Recommend no routine screening for parasites in asymptomatic adult Syrian refugees.
Introduction Concerns have been raised regarding the emergence of antimicrobial-resistance and parasitic infections in the European refugee population. Here, we estimated the prevalence of intestinal parasites and selected antimicrobial-resistant bacteria in newly arrived asylum seekers in Denmark. Materials and methods Using a cross-sectional one-stage cluster sample design, adult Syrian asylum seekers were included upon arrival in Denmark. Faecal samples were collected and tested for ova and parasites, extended-spectrum beta-lactamase-producing Enterobacterales (ESBL-E) and carbapenemase-producing organisms (CPO). Throat swabs were collected and analysed for methicillin-resistant Staphylococcus aureus (MRSA) and Corynebacterium diphtheriae. Results We invited 121 eligible individuals (20% of the source population) from six different asylum centres to participate, of whom 113 agreed. Throat swabs and faecal samples were received from 104 and 48 participants, respectively. Seven individuals did not provide enough material for the entire panel of faecal analyses. Three individuals (7.3%, 95%CI: 2.5–19.4%) were colonised with Giardia intestinalis and 28 (68.3%, 95%CI: 53.0–80.4%) with Blastocystis sp. (subtypes 1 [n = 5], 2 [n = 9] and 3 [n = 14]). Seven individuals (6.7%, 95%CI: 3.3–13.3%) were colonised with MRSA and one with ESBL-E. None had CPO or Corynebacterium diphtheriae and none reported any gastro-intestinal symptoms. Discussion Even with the most conservative estimates, the prevalence of Giardia intestinalis, Blastocystis sp. and MRSA was high in this asymptomatic refugee population. Conclusions We highlight the importance of raised awareness of antimicrobial-resistant bacteria when attending to newly arrived Syrian refugees. Meanwhile, our data suggest that routine screening for intestinal parasites in this population is of limited clinical relevance.
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Affiliation(s)
- Andreas Halgreen Eiset
- Center for Global Health (GloHAU), Department of Public Health, Aarhus University, Bartholins Allé 2, 8000 Aarhus C, Denmark
| | - Christen Rune Stensvold
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Artillerivej 5, 2300 Copenhagen S, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Artillerivej 5, 2300 Copenhagen S, Denmark
| | - Henrik Vedel Nielsen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Artillerivej 5, 2300 Copenhagen S, Denmark
| | - Christian Wejse
- Center for Global Health (GloHAU), Department of Public Health, Aarhus University, Bartholins Allé 2, 8000 Aarhus C, Denmark
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32
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Ring HC, Thorsen J, Fuursted K, Bjarnsholt T, Bay L, Saunte DM, Thomsen SF, Jemec GB. Probiotics in hidradenitis suppurativa: a potential treatment option? Clin Exp Dermatol 2021; 47:139-141. [PMID: 34236727 DOI: 10.1111/ced.14838] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Accepted: 07/06/2021] [Indexed: 01/15/2023]
Affiliation(s)
- H C Ring
- Department of Dermato-Venereology and Wound Healing Centre, Bispebjerg Hospital and Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - J Thorsen
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.,Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - K Fuursted
- Department of Microbiology and Infection Control, Statens Serum Institut, Copenhagen, Denmark
| | - T Bjarnsholt
- Costerton Biofilm Center, University of Copenhagen, Denmark.,Department of Clinical Microbiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - L Bay
- Costerton Biofilm Center, University of Copenhagen, Denmark
| | - D M Saunte
- Department of Dermatology, Faculty of Health and Medical Sciences, Zealand University Hospital, University of Copenhagen, Copenhagen, Denmark
| | - S F Thomsen
- Department of Dermato-Venereology and Wound Healing Centre, Bispebjerg Hospital and Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - G B Jemec
- Department of Dermatology, Faculty of Health and Medical Sciences, Zealand University Hospital, University of Copenhagen, Copenhagen, Denmark
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33
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Thomsen K, Pedersen HP, Iversen S, Wiese L, Fuursted K, Nielsen HV, Christensen JJE, Nielsen XC. Extensive microbiological respiratory tract specimen characterization in critically ill COVID-19 patients. APMIS 2021; 129:431-437. [PMID: 33950572 PMCID: PMC8239678 DOI: 10.1111/apm.13143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/28/2021] [Indexed: 12/23/2022]
Abstract
Microbial co‐infections may contribute to the pulmonary deterioration in COVID‐19 patients needing intensive care treatment. The present study portrays the extent of co‐infections in COVID‐19 ICU patients. Conventional culture, molecular detections for atypical aetiologies, QiaStat‐Dx® respiratory panel V2 detecting 21 respiratory pathogens and ribosomal DNA genes 16S/18S amplicon‐based microbiome analyses were performed on respiratory samples from 34 COVID‐19 patients admitted to the ICU. Potential pathogens were detected in seven patients (21%) by culturing, in four patients (12%) by microbiome analysis and in one patient (3%) by respiratory panel. Among 20 patients receiving antibiotics prior to ICU admission, fungi (3 Candidaalbicans, 1 C. tropicalis, 1 C. dubliniensis) were cultured in 5 (15%) endotracheal aspirates. Among 14 patients who were antibiotic‐naive at ICU admission, two patients (6%) had bacterial respiratory pathogens (Staphylococcusaureus, Streptococcuspseudopneumoniae) cultured in their endotracheal aspirates. Microbiome analysis recognized four potential respiratory pathogens (3 Haemophilusinfluenza, 1 Fusobacterium necrophorum) isolated in samples from four other patients (12%). QiaStat‐Dx® respiratory panel V2 detected adenovirus in one patient (3%). The prevalence of pulmonary microbial co‐infections is modest among COVID‐19 patients upon admission to ICU. Microbiome analysis complements conventional microbial diagnostics in characterization of respiratory co‐infections.
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Affiliation(s)
- Kim Thomsen
- The Regional Department of Clinical Microbiology, Zealand University Hospital, Roskilde, Denmark
| | | | - Susanne Iversen
- Department of Anaesthesiology, Slagelse Hospital, Slagelse, Denmark
| | - Lothar Wiese
- Department of Infectious Diseases, Zealand University Hospital Roskilde, Roskilde, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Henrik Vedel Nielsen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Jens Jørgen Elmer Christensen
- The Regional Department of Clinical Microbiology, Zealand University Hospital, Roskilde, Denmark.,Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Xiaohui Chen Nielsen
- The Regional Department of Clinical Microbiology, Zealand University Hospital, Roskilde, Denmark
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Mørch MGM, Møller KV, Hesselager MO, Harders RH, Kidmose CL, Buhl T, Fuursted K, Bendixen E, Shen C, Christensen LG, Poulsen CH, Olsen A. The TGF-β ligand DBL-1 is a key player in a multifaceted probiotic protection against MRSA in C. elegans. Sci Rep 2021; 11:10717. [PMID: 34021197 PMCID: PMC8139972 DOI: 10.1038/s41598-021-89831-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/30/2021] [Indexed: 02/04/2023] Open
Abstract
Worldwide the increase in multi-resistant bacteria due to misuse of traditional antibiotics is a growing threat for our health. Finding alternatives to traditional antibiotics is thus timely. Probiotic bacteria have numerous beneficial effects and could offer safer alternatives to traditional antibiotics. Here, we use the nematode Caenorhabditis elegans (C. elegans) to screen a library of different lactobacilli to identify potential probiotic bacteria and characterize their mechanisms of action. We show that pretreatment with the Lactobacillus spp. Lb21 increases lifespan of C. elegans and results in resistance towards pathogenic methicillin-resistant Staphylococcus aureus (MRSA). Using genetic analysis, we find that Lb21-mediated MRSA resistance is dependent on the DBL-1 ligand of the TGF-β signaling pathway in C. elegans. This response is evolutionarily conserved as we find that Lb21 also induces the TGF-β pathway in porcine epithelial cells. We further characterize the host responses in an unbiased proteome analysis and identify 474 proteins regulated in worms fed Lb21 compared to control food. These include fatty acid CoA synthetase ACS-22, aspartic protease ASP-6 and vitellogenin VIT-2 which are important for Lb21-mediated MRSA resistance. Thus, Lb21 exerts its probiotic effect on C. elegans in a multifactorial manner. In summary, our study establishes a mechanistic basis for the antimicrobial potential of lactobacilli.
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Affiliation(s)
- Maria G M Mørch
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark
| | - Katrine V Møller
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark
| | | | - Rikke H Harders
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark
| | - Caroline L Kidmose
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark
| | - Therese Buhl
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark
| | | | - Emøke Bendixen
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Chong Shen
- Gut Immunology Lab, Health & Biosciences , IFF , Brabrand , Denmark
| | | | | | - Anders Olsen
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark.
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Stensvold CR, Nielsen M, Baraka V, Lood R, Fuursted K, Nielsen HV. Entamoeba gingivalis: epidemiology, genetic diversity and association with oral microbiota signatures in North Eastern Tanzania. J Oral Microbiol 2021; 13:1924598. [PMID: 34104347 PMCID: PMC8143617 DOI: 10.1080/20002297.2021.1924598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Entamoeba gingivalis has been associated with periodontal diseases. Baseline data from the background population, which could help delimit the role of the parasite in health and disease, remain limited. Objective To describe epidemiological features, genetic diversity, and associations with oral microbiome signatures of E. gingivalis colonisation in Tanzanians with non-oral/non-dental diseases. Methods DNAs from 92 oral washings from 52 participants were subject to metabarcoding of ribosomal genes. DNA sequences were identified to genus level and submitted to oral microbiota diversity analyses. Results Sixteen (31%) of the 52 study participants were E. gingivalis-positive, with no difference in positivity rate according to gender or age. Only one subtype (ST1) was found. Individuals testing positive for E. gingivalis had higher oral microbiota alpha diversity than those testing negative (P = 0.03). Eight of the top-ten most common bacterial genera were shared between the two groups (Alloprevotella, Fusobacterium, Gemella, Haemophilus, Neisseria, Porphyromonas, Prevotella, Streptococcus, and Veillonella). Meanwhile, E. gingivalis carriers and non-carriers were more likely to have Aggregatibacter and Rothia, respectively, among the top-ten most common genera. Conclusion About one third of the cohort carried E. gingivalis ST1, and carriers had higher oral microbiome diversity and were more predominantly colonized by Aggregatibacter.
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Affiliation(s)
| | - Michelle Nielsen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen S, Denmark
| | - Vito Baraka
- Department of Biomedical Sciences, National Institute for Medical Research, Tanga Centre, United Republic of Tanzania
| | - Rolf Lood
- Department of Clinical Sciences, Division of Infection Medicine, Lund University, Lund, Sweden
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen S, Denmark
| | - Henrik Vedel Nielsen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen S, Denmark
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Hansen CB, Fuursted K, Valentiner-Branth P, Dalby T, Jørgensen CS, Slotved HC. Molecular characterization and epidemiology of Streptococcus pneumoniae serotype 8 in Denmark. BMC Infect Dis 2021; 21:421. [PMID: 33952197 PMCID: PMC8097992 DOI: 10.1186/s12879-021-06103-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/22/2021] [Indexed: 12/05/2022] Open
Abstract
Background Streptococcus pneumoniae serotype 8 incidence has increased in Denmark after the introduction of pneumococcal conjugated vaccines (PCV). The mechanism behind the serotype 8 replacement is not well understood. In this study, we aimed to present epidemiological data on invasive pneumococcal disease (IPD) and molecular characterization of 96 serotype 8 clinical isolates. Methods IPD data from 1999 to 2019 were used to calculate the incidence and age distribution. Whole-genome sequencing (WGS) analysis was performed on 96 isolates (6.8% of the total serotype 8 IPD isolates in the period) to characterize the isolates with respect to pneumococcal lineage traits, a range of genes with potential species discrimination, presence of colonization and virulence factors, and molecular resistance pattern. Results The serotype 8 IPD incidence increased significantly (P < 0.05) for the age groups above 15 years after the introduction of PCV13, primarily affecting the elderly (65+). All isolates were phenotypically susceptible to penicillin, erythromycin and clindamycin. Molecular characterization revealed seven different MLST profiles with ST53 as the most prevalent lineage (87.5%) among the analyzed serotype 8 isolates. The genes covering the cell-surface proteins: lytA, rspB, pspA, psaA & Xisco and the pneumococcal toxin pneumolysin = ply were present in all isolates, while genes for the membrane transporter proteins: piaA/piaB/piaC; the capsular genes: cpsA (wzg) & psrP; the metallo-binding proteins zmpB & zmpC; and the neuroamidase proteins: nanA/nanB were variably present. Surprisingly, the putative transcriptional regulator gene SP2020 was not present in all isolates (98%). Susceptibility to penicillin, erythromycin and clindamycin was molecularly confirmed. Conclusion The observed serotype 8 replacement was not significantly reflected with a change in the MLST profile or changes in antibiotic resistance- or virulence determinants. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-021-06103-w.
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Affiliation(s)
- Camilla Bülow Hansen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Artillerivej 5, DK-2300, Copenhagen S, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Artillerivej 5, DK-2300, Copenhagen S, Denmark
| | | | - Tine Dalby
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Artillerivej 5, DK-2300, Copenhagen S, Denmark
| | - Charlotte Sværke Jørgensen
- Department of Virus and Microbiological Special Diagnostics, Statens Serum Institut, Copenhagen, Denmark
| | - H-C Slotved
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Artillerivej 5, DK-2300, Copenhagen S, Denmark.
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Slotved HC, Fuursted K, Kavalari ID, Hoffmann S. Molecular Identification of Invasive Non-typeable Group B Streptococcus Isolates From Denmark (2015 to 2017). Front Cell Infect Microbiol 2021; 11:571901. [PMID: 33854981 PMCID: PMC8039440 DOI: 10.3389/fcimb.2021.571901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 03/09/2021] [Indexed: 11/13/2022] Open
Abstract
The number of invasive Streptococcus agalactiae (GBS) non-typeable (NT) isolates in Denmark received since 1999 has in general accounted for 10% of all invasive GBS isolates. We present data on 55 clinical NT isolates based on clinical manifestations, clonal relationship, antimicrobial resistance (AMR) determinants, and virulence factors. The GBS isolates included in this study were phenotypic-based NT obtained from 2015 to 2017, as well as 10 reference isolates. Whole genome sequencing (WGS) was performed on all isolates and the data were analyzed for the presence of both species specific genes, capsular genes (genotype), and other relevant genes. We furthermore compared different procedures for detection of serotype specific capsular genes. Overall we were able to genotype 54 of the 55 isolates. After retesting the isolates a phenotype was detected for 20 (36%) isolates, of which the initial phenotyping problem for 13 isolates was found to be due to a problem with serotype Ia specific antiserum. Thirty-five isolates remained phenotypic non-typeable with a majority of genotype V isolates which do not express a capsular gene. From all the Danish invasive GBS isolates from 2015 to 2017, the 35 NT isolates were all detected in the age group above 21 years with bacteremia. The 35 NT isolates belonged to six different well-known human pathogenic clonal complexes. The CDC recommended sequences for capsule genotyping were the most optimal for serotype prediction, because of the sequence simplicity and clear cutoff values. However we recommend to also use other capsular sequences for the NT isolates, if they cannot be genotyped by the CDC method.
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Affiliation(s)
- Hans-Christian Slotved
- Neisseria and Streptococcus Reference Laboratory, Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Kurt Fuursted
- Neisseria and Streptococcus Reference Laboratory, Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Ioanna Drakaki Kavalari
- Neisseria and Streptococcus Reference Laboratory, Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Steen Hoffmann
- Neisseria and Streptococcus Reference Laboratory, Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
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Uddén F, Filipe M, Slotved HC, Yamba-Yamba L, Fuursted K, Pintar Kuatoko P, Larsson M, Bjurgert J, Månsson V, Pelkonen T, Reimer Å, Riesbeck K. Pneumococcal carriage among children aged 4 - 12 years in Angola 4 years after the introduction of a pneumococcal conjugate vaccine. Vaccine 2020; 38:7928-7937. [PMID: 33143954 DOI: 10.1016/j.vaccine.2020.10.060] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/16/2020] [Accepted: 10/19/2020] [Indexed: 10/23/2022]
Abstract
Children in Angola are affected by a high burden of disease caused by pneumococcal infections. The 13-valent pneumococcal conjugate vaccine (PCV13) was introduced in the childhood immunization programme in 2013 but the serotype distribution of Streptococcus pneumoniae and antimicrobial susceptibility patterns are unknown. We did a cross-sectional nasopharyngeal carriage study in Luanda and Saurimo, Angola (PCV13 3rd dose coverage 67% and 84%, respectively) during November to December 2017 comprising 940 children aged 4-12 years. The main objective was to assess vaccine serotype coverage and antimicrobial susceptibility rates for S. pneumoniae. Our secondary aim was to characterize colonizinig strains of Haemophilus influenzae and Moraxella catarrhalis. Pneumococcal colonization was found in 35% (95% CI 32-39%) of children (n = 332), with 41% of serotypes covered by PCV13. The most common serotypes were 3 (8%), 18C (6%), 23F (6%), 11A (6%), 34 (6%), 19F (5%) and 16 (5%). Carriage of H. influenzae and M. catarrhalis was detected in 13% (95% CI 11-15%) and 15% (95% CI 13-17%) of children, respectively. Non-susceptibility to penicillin was common among pneumococci (40%), particularly among PCV13-included serotypes (50% vs. 33%; p = 0.003), although the median minimal inhibitory concentration was low (0.19 µg/mL, IQR 0.13-0.25 µg/mL). Most pneumococci and H. influenzae were susceptible to amoxicillin (99% and 88%, respectively). Furthermore, resistance to trimethoprim-sulfamethoxazole was>70% among all three species. Multidrug-resistant pneumococci (non-susceptible to ≥ 3 antibiotics; 7% [n = 24]) were further studied with whole genome sequencing to investigate clonality as an underlying cause for this phenotype. No clearly dominating clone(s) were, however, detected. The results indicate that continued use of PCV13 may have positive direct and herd effects on pneumococcal infections in Angola as carriage of vaccine serotypes was common in the non-vaccinated age group. Finally, amoxicillin is assessed to be a feasible empirical treatment of respiratory tract infections in Angola.
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Affiliation(s)
- Fabian Uddén
- Clinical microbiology, Department of Translational Medicine, Faculty of Medicine, Lund university, Jan Waldenströms gata 59, SE-205 02 Malmö, Sweden.
| | - Matuba Filipe
- ORL-department, Hospital Josina Machel, Luanda, Angola; Faculty of Medicine, Agostinho Neto University, Luanda, Angola
| | - Hans-Christian Slotved
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark.
| | - Linda Yamba-Yamba
- Clinical microbiology, Department of Translational Medicine, Faculty of Medicine, Lund university, Jan Waldenströms gata 59, SE-205 02 Malmö, Sweden.
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark.
| | - Palmira Pintar Kuatoko
- ORL-department, Hospital Josina Machel, Luanda, Angola; Faculty of Medicine, Agostinho Neto University, Luanda, Angola
| | - Måns Larsson
- Clinical microbiology, Department of Translational Medicine, Faculty of Medicine, Lund university, Jan Waldenströms gata 59, SE-205 02 Malmö, Sweden
| | - Jonas Bjurgert
- Clinical microbiology, Department of Translational Medicine, Faculty of Medicine, Lund university, Jan Waldenströms gata 59, SE-205 02 Malmö, Sweden
| | - Viktor Månsson
- Clinical microbiology, Department of Translational Medicine, Faculty of Medicine, Lund university, Jan Waldenströms gata 59, SE-205 02 Malmö, Sweden.
| | - Tuula Pelkonen
- Children's Hospital, Helsinki University Hospital, Helsinki, Finland; University of Helsinki, Helsinki, Finland
| | - Åke Reimer
- ENT-Outpatient Department, Slottsstadens Läkarhus, Malmö, Sweden
| | - Kristian Riesbeck
- Clinical microbiology, Department of Translational Medicine, Faculty of Medicine, Lund university, Jan Waldenströms gata 59, SE-205 02 Malmö, Sweden.
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Slotved HC, Jørgensen CS, Jørgensen KM, Fuursted K. A case of false-positive pneumococcal urinary antigen test in a bacteremic Streptococcus agalactiae infection. APMIS 2020; 128:511-512. [PMID: 32564431 DOI: 10.1111/apm.13066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 06/10/2020] [Indexed: 01/21/2023]
Affiliation(s)
- Hans-Christian Slotved
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | | | | | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
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Knuutila A, Dalby T, Barkoff AM, Jørgensen CS, Fuursted K, Mertsola J, Markey K, He Q. Differences in epitope-specific antibodies to pertussis toxin after infection and acellular vaccinations. Clin Transl Immunology 2020; 9:e1161. [PMID: 32765879 PMCID: PMC7396262 DOI: 10.1002/cti2.1161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/15/2020] [Accepted: 07/02/2020] [Indexed: 11/29/2022] Open
Abstract
Objectives Pertussis toxin (PT) is a component of all acellular pertussis vaccines. PT must be detoxified to be included in acellular vaccines, which results in conformational changes in the functional epitopes of PTs. Therefore, induced epitope‐specific antibodies to PT may vary after vaccinations or natural infections, and this information could reveal biomarkers implicated for protection and successful immunisation. Methods Pertussis toxin epitope‐specific antibodies in sera from 152 vaccinated children and 72 serologically confirmed patients were tested with a blocking ELISA, based on monoclonal antibodies that target protective PT epitopes. Results All study groups induced considerable antibody titres to subunit 1 (S1). Of interest, S3 7E10‐specific antibodies were present in patients, but not after vaccinations (P < 0.001). The impact of glutaraldehyde treatment of PT was visible on epitope 1D7 (S1), whereas epitopes 1B7 (S1) and 10D (S1) were more preserved. Antibodies to these epitopes were higher after three primary vaccine doses than after a single booster dose. Conclusion The high amount of 7E10‐specific antibodies in patients suggests this epitope might be functionally relevant in protection. The overall characteristics of epitope‐specific antibodies are influenced by infection or vaccination background, by the used detoxification method of PT and by the amount of the toxin used in immunisation.
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Affiliation(s)
- Aapo Knuutila
- Institute of Biomedicine University of Turku Turku Finland
| | - Tine Dalby
- Statens Serum Institut Copenhagen Denmark
| | | | | | | | - Jussi Mertsola
- Department of Pediatrics and Adolescent Medicine Turku University Hospital Turku Finland
| | - Kevin Markey
- National Institute for Biological Standards and Control Potters Bar UK
| | - Qiushui He
- Institute of Biomedicine University of Turku Turku Finland.,Department of Medical Microbiology Capital Medical University Beijing China
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Spiegelhauer MR, Kupcinskas J, Johannesen TB, Urba M, Skieceviciene J, Jonaitis L, Frandsen TH, Kupcinskas L, Fuursted K, Andersen LP. Transient and Persistent Gastric Microbiome: Adherence of Bacteria in Gastric Cancer and Dyspeptic Patient Biopsies after Washing. J Clin Med 2020; 9:jcm9061882. [PMID: 32560179 PMCID: PMC7357088 DOI: 10.3390/jcm9061882] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 12/14/2022] Open
Abstract
Helicobacter pylori is a common colonizer of the human stomach, and long-term colonization has been related to development of atrophic gastritis, peptic ulcers and gastric cancer. The increased gastric pH caused by H. pylori colonization, treatment with antibiotics or proton pump inhibitors (PPI) may allow growth of other bacteria. Previous studies have detected non-Helicobacter bacteria in stomach biopsies, but no conclusion has been made of whether these represent a transient contamination or a persistent microbiota. The aim of this study was to evaluate the transient and persistent bacterial communities of gastric biopsies. The washed or unwashed gastric biopsies were investigated by cultivation and microbiota analysis (16S rRNA gene-targeted amplicon sequencing) for the distribution of H. pylori and other non-Helicobacter bacteria. The number of cultured non-Helicobacter bacteria decreased in the washed biopsies, suggesting that they might be a transient contamination. No significant differences in the bacterial diversity were observed in the microbiome analysis between unwashed and washed biopsies. However, the bacterial diversity in biopsies shown H. pylori-positive and H. pylori-negative were significantly different, implying that H. pylori is the major modulator of the gastric microbiome. Further large-scale studies are required to investigate the transient and persistent gastric microbiota.
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Affiliation(s)
- Malene R. Spiegelhauer
- Department of Clinical Microbiology, Rigshospitalet, Henrik Harpestrengs Vej 4A, 2100 Copenhagen, Denmark; (T.H.F.); (L.P.A.)
- Correspondence: ; Tel.: +45-2585-2011
| | - Juozas Kupcinskas
- Department of Gastroenterology, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania; (J.K.); (M.U.); (L.J.); (L.K.)
- Institute for Digestive Research, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania;
| | - Thor B. Johannesen
- Department of Clinical Microbiology and Infection Control, Statens Serum Institute, Artillerivej 5, 2300 Copenhagen, Denmark; (T.B.J.); (K.F.)
| | - Mindaugas Urba
- Department of Gastroenterology, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania; (J.K.); (M.U.); (L.J.); (L.K.)
- Institute for Digestive Research, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania;
| | - Jurgita Skieceviciene
- Institute for Digestive Research, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania;
| | - Laimas Jonaitis
- Department of Gastroenterology, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania; (J.K.); (M.U.); (L.J.); (L.K.)
| | - Tove H. Frandsen
- Department of Clinical Microbiology, Rigshospitalet, Henrik Harpestrengs Vej 4A, 2100 Copenhagen, Denmark; (T.H.F.); (L.P.A.)
| | - Limas Kupcinskas
- Department of Gastroenterology, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania; (J.K.); (M.U.); (L.J.); (L.K.)
- Institute for Digestive Research, Lithuanian University of Health Sciences, Eiveniu str. 2, LT-50009 Kaunas, Lithuania;
| | - Kurt Fuursted
- Department of Clinical Microbiology and Infection Control, Statens Serum Institute, Artillerivej 5, 2300 Copenhagen, Denmark; (T.B.J.); (K.F.)
| | - Leif P. Andersen
- Department of Clinical Microbiology, Rigshospitalet, Henrik Harpestrengs Vej 4A, 2100 Copenhagen, Denmark; (T.H.F.); (L.P.A.)
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Strandbygaard L, Larsen Rasmussen S, Fuursted K, Hay Kragholm K, Leutscher PC, Rasmussen C. SAT0600 PNEUMOCOCCAL VACCINATION IN PATIENTS WITH AUTOIMMUNE INFLAMMATORY RHEUMATIC DISEASES, TREATED WITH BIOLOGICAL THERAPY AND WITH A LOW LEVEL OF ANTIBODIES - A COHORT STUDY OF PATIENTS WITH VARYING VACCINATION STATUS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Risk of infection is increased in patients with autoimmune inflammatory rheumatic diseases (AIRD)1. Furthermore, disease-modifying antirheumatic drug (DMARD) treatment contributes to this risk2. To reduce the risk of serious infections, it is recommended that patients are vaccinated againstStreptococcus pneumoniae3. However, some AIRD patients do not develop or maintain an adequate antibody response after pneumococcal vaccination4.Objectives:The aim of the study was to examine the proportion of patients with low antibody levels, who achieved a protective level of pneumococcal antibodies after vaccination.Methods:Pneumococcal antibodies were measured by a serological assay in patients treated with biologics in a rheumatology outpatient clinic. Vaccination with 23-valent-pneumococcal polysaccarid vaccine was then offered to patients with a protective antibody level below the defined threshold and pneumococcal antibody level was measured at follow-up 2-3 months later. The patients continued their DMARD treatment without any changes.Demographic and clinical data were collected, including age, sex, AIRD diagnosis, duration and activity (high/low), in addition to treatment (biologics, prednisolone, methotrexate) and previous vaccination history.Results:A total of 248 patients with inadequate antibody level accepted vaccination and among those, 137 patients (55%) had previously been vaccinated, 98 patients had not previously been vaccinated and for 13 patients data on vaccination status could not be obtained.At follow-up, 84 patients (34%) achieved a protective level of antibodies. Use of methotrexate as part of the DMARD regimen was associated with an unprotected level of pneumococcal antibodies (Figure 1) (p<0,001). There was no similar association with respect to use of biologics.Figure 1In the group of patients who had previously been vaccinated, time between vaccinations spanned from 20 to 111 months, median 49 months.There was an association between previous vaccination, and failure in achieving a protective antibody level (Figure 1) (p=0,02), as well as an association between less than 5 years (60 months) between vaccinations and not achieving a protective level.Conclusion:We found that only one-third of patients achieved a protective pneumococcal antibody level after vaccination. Methotrexate treatment was associated with a decreased antibody response, which was not the case for treatment with biologics or prednisolone.Among patients who had previously been vaccinated, significantly less achieved a protective level of antibodies, compared to patients who had not been vaccinated. All 248 patients had a low antibody level at baseline, despite 137 being previously vaccinated.Further studies are warranted to show whether or not a short discontinuation of methotrexate, will better the response to vaccination.References:[1]Wolfe, F. et al. The mortality of rheumatoid arthritis.Arthritis Rheum1994;37(4):481–494.[2]Ramiro, S. et al.). Safety of synthetic and biological DMARDs: a systematic literature review informing the 2016 update of the EULAR recommendations for management of rheumatoid arthritis.Ann Rheum Dis2017;76(6):1101–1136.[3]van Assen S. et al. (). EULAR recommendations for vaccination in adult patients with autoimmune inflammatory rheumatic diseases.Ann Rheum Dis2011;70(3):414–422.[4]Hua, C. et al. Effect of methotrexate, anti-tumor necrosis factor alpha, and rituximab on the immune response to influenza and pneumococcal vaccines in patients with rheumatoid arthritis: a systematic review and meta-analysis.Arthritis Care Res 2014;66(7):1016–1026.Disclosure of Interests:None declared
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Danstrup CS, Münch HJ, Klug TE, Fuursted K, Ovesen T. Clinical presentation and microbiology of acute salivary gland infections. Dan Med J 2020; 67:A11190659. [PMID: 32741433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Acute salivary gland infections (ASI) have been associated with poor outcome in elderly and postoperative patients. Perioperative care and treatment of co-morbidities have improved considerably, but most of our knowledge regarding ASI dates back several decades. The aim of this study was to describe the microbiology and treatment of ASI in a large post-millennial cohort. METHODS All patients with ASI admitted to the Department of Otorhinolaryngology - Head and Neck Surgery, Aarhus University Hospital in the period from 2001 to 2017 were included. RESULTS In total, 157 patients with ASI were included. The parotid gland (PG) was affected in 89 (57%) cases and the submandibular gland (SMG) in 68 (43%) cases. The most prevalent bacterial findings were viridans streptococci (25 isolates) and Staphylococcus aureus (19 isolates). S. aureus was almost exclusively found in PG (17/19 cases). S. aureus-positive cases showed a significantly higher inflammatory response than other bacteria (C-reactive protein, p = 0.008 and absolute neutrophil count, p = 0.0108). CONCLUSIONS S. aureus is a significant pathogen in ASI and especially in PG cases. Other pathogens may play a role in the development of SMG infections. Based on the bacterial findings in this study, we recommend penicillinase-resistant penicillin as first-line treatment in ASI. FUNDING none Trial registration: not relevant. The Danish Data Protection Agency approved the project.
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Rasmussen SL, Fuursted K, Nielsen KA, Laurberg NP, Sørensen MB, Fagerberg SK, Leutscher P, Rasmussen C. Pneumococcal antibody protection in patients with autoimmune inflammatory rheumatic diseases with varying vaccination status. Scand J Rheumatol 2020; 49:353-360. [PMID: 32468899 DOI: 10.1080/03009742.2020.1732459] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Objectives: The aims of this cross-sectional study were to assess the pneumococcal antibody coverage in patients with autoimmune inflammatory rheumatic disease (AIRD) and to identify predictors associated with inadequate protective antibody levels. Method: Antibodies to 12 serotypes occurring in the commonly applied pneumococcal vaccines in Denmark were measured in AIRD patients with a diagnosis of rheumatoid arthritis, spondyloarthritis, or psoriatic arthritis attending the Department of Rheumatology at the North Denmark Regional Hospital. Immunization against pneumococcal infection was defined as a geometric mean level ≥ 1 μg antibodies/mL. Clinical information about vaccination status and disease/treatment history was retrieved from the medical file system. Results: Results of antibody measurement and vaccination status were available from 346 AIRD patients, of whom 200 (58%) were registered as receiving pneumococcal vaccination, whereas the remaining 146 patients (42%) were not. Of all 346 patients, only 61 (18%) were measured with an adequate level of protective antibodies (30% vs 1%, respectively). Methotrexate treatment at the time of vaccination and increasing age were identified as predictors of poor vaccination outcome in multiple logistic regression analysis. Conclusions: This post-vaccination study showed that less than one-fifth of the AIRD patients are adequately protected against pneumococcal infection, although the immunization programme had been implemented in more than half of the study population. Development of improved vaccination strategies is required to achieve a higher immunization coverage rate and more efficient lasting antibody response.
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Affiliation(s)
- S L Rasmussen
- Department of Rheumatology, North Denmark Regional Hospital , Hjoerring, Denmark.,Centre for Clinical Research, North Denmark Regional Hospital , Hjoerring, Denmark
| | - K Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institute , Copenhagen, Denmark
| | - K A Nielsen
- Department of Rheumatology, North Denmark Regional Hospital , Hjoerring, Denmark
| | - N P Laurberg
- Department of Rheumatology, North Denmark Regional Hospital , Hjoerring, Denmark
| | - M B Sørensen
- Centre for Clinical Research, North Denmark Regional Hospital , Hjoerring, Denmark
| | - S K Fagerberg
- Centre for Clinical Research, North Denmark Regional Hospital , Hjoerring, Denmark.,Department of Anesthesiology and Intensive Care, North Denmark Regional Hospital , Hjoerring, Denmark
| | - P Leutscher
- Centre for Clinical Research, North Denmark Regional Hospital , Hjoerring, Denmark.,Department of Clinical Medicine, Aalborg University , Aalborg, Denmark
| | - C Rasmussen
- Department of Rheumatology, North Denmark Regional Hospital , Hjoerring, Denmark.,Centre for Clinical Research, North Denmark Regional Hospital , Hjoerring, Denmark.,Department of Clinical Medicine, Aalborg University , Aalborg, Denmark
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45
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Eiset AH, Aoun MP, Haddad RS, Naja WJ, Fuursted K, Nielsen HV, Stensvold CR, Nielsen MS, Gottlieb A, Frydenberg M, Wejse C. Asylum seekers' and Refugees' Changing Health (ARCH) study protocol: an observational study in Lebanon and Denmark to assess health implications of long-distance migration on communicable and non-communicable diseases and mental health. BMJ Open 2020; 10:e034412. [PMID: 32461293 PMCID: PMC7259863 DOI: 10.1136/bmjopen-2019-034412] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
INTRODUCTION By end of 2018, the European Union countries hosted approximately 2.5 million refugees and Lebanon alone hosted more than 1 million. The majority of refugees worldwide came from Syria. The prevailing study design in published studies on asylum seekers' and refugees' health leaves a number of fundamental research questions unanswerable. In the Asylum seekers' and Refugees' Changing Health (ARCH) study, we examine the health of a homogeneous group of refugees and asylum seekers in two very different host countries with very different migration histories. We aim to study the health impact of the migration process, living conditions, access to healthcare, gene-environment interactions and the health transition. METHODS AND ANALYSIS ARCH is an international multisite study of the health of adult (>18 years old) Syrian refugees and asylum seekers in Lebanon and Denmark. Using a standardised framework, we collect information on mental and physical health using validated scales and biological samples. We aim to include 220 participants in Danish asylum centres and 1100 participants in Lebanese refugee camps and settlements. We will use propensity score weights to control for confounding and multiple imputation to handle missing data. ETHICS AND DISSEMINATION Ethical approval has been obtained in Lebanon and Denmark. In the short term, we will present the cross-sectional association between long-distance migration and the results of the throat and wound swab, blood and faeces samples and mental health screenings. In the longer term, we are planning to follow the refugees in Denmark with collection of dried blood spots, mental health screenings and semistructured qualitative interviews on the participant's health and access to healthcare in the time lived in Denmark. Here, we present an overview of the background for the ARCH study as well as a thorough description of the methodology.
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Affiliation(s)
- Andreas Halgreen Eiset
- Center for Global Health (GloHAU), Department of Public Health, Aarhus University, Aarhus, Denmark
- Clinic for PTSD and Anxiety, Aarhus University Hospital, Aarhus, Denmark
| | | | - Ramzi S Haddad
- Department of Psychiatry, Lebanese University, Beirut, Lebanon
| | - Wadih J Naja
- Department of Psychiatry, Lebanese University, Beirut, Lebanon
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Kobenhavn, Denmark
| | - Henrik Vedel Nielsen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Kobenhavn, Denmark
| | | | | | - Annemarie Gottlieb
- Clinic for PTSD and Anxiety, Aarhus University Hospital, Aarhus, Denmark
| | | | - Christian Wejse
- Center for Global Health (GloHAU), Department of Public Health, Aarhus University, Aarhus, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
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Kämpfer P, Fuglsang-Damgaard D, Overballe-Petersen S, Hasman H, Hammerum AM, Fuursted K, Blom J, Glaeser SP, Hansen F. Taxonomic reassessment of the genus Pseudocitrobacter using whole genome sequencing: Pseudocitrobacter anthropi is a later heterotypic synonym of Pseudocitrobacter faecalis and description of Pseudocitrobacter vendiensis sp. nov. Int J Syst Evol Microbiol 2020; 70:1315-1320. [PMID: 31860429 DOI: 10.1099/ijsem.0.003918] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 11/18/2022] Open
Abstract
The taxonomic status of all Pseudocitrobacter species was re-evaluated by comparative genomics based on whole genome sequencing. As a result, it is obvious that Pseudocitrobacter anthropi is a later heterotypic synonym of Pseudocitrobacter faecalis. In addition, genome-based analysis of strain CPO20170097T, isolated from a patient in northern Denmark was allocated to the genus Pseudocitrobacter. This strain showed significant genotypic and phenotypic differences from P. faecalis and it is proposed that this strain represents a novel species of the genus, for which the name Pseudocitrobacter vendiensis sp. nov. is proposed with the type strain CPO20170097T (=CCUG 73096T=LMG 31042T).
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Affiliation(s)
- Peter Kämpfer
- Institut für Angewandte Mikrobiologie, Universität Giessen, Giessen, Germany
| | | | | | - Henrik Hasman
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Anette M Hammerum
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Kurt Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
| | - Jochen Blom
- Institute for Bioinformatics and Systems Biology, Justus-Liebig-Universität Giessen, Giessen, D-35392, Germany
| | - Stefanie P Glaeser
- Institut für Angewandte Mikrobiologie, Universität Giessen, Giessen, Germany
| | - Frank Hansen
- Department of Bacteria, Parasites and Fungi, Statens Serum Institut, Copenhagen, Denmark
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Ring HC, Thorsen J, Jørgensen AH, Bay L, Bjarnsholt T, Fuursted K, Thomsen SF, Jemec GB. Predictive Metagenomic Analysis Reveals a Role of Cutaneous Dysbiosis in the Development of Hidradenitis Suppurativa. J Invest Dermatol 2019; 140:1473-1476. [PMID: 31838125 DOI: 10.1016/j.jid.2019.11.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/07/2019] [Accepted: 11/12/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Hans Christian Ring
- Department of Dermato-Venereology & Wound Healing Centre, Bispebjerg Hospital, Copenhagen, Denmark.
| | - Jonathan Thorsen
- COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark; The Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Astrid Helene Jørgensen
- Department of Dermato-Venereology & Wound Healing Centre, Bispebjerg Hospital, Copenhagen, Denmark
| | - Lene Bay
- Costerton Biofilm Center, University of Copenhagen, Denmark
| | | | - Kurt Fuursted
- Department of Microbiology and Infection Control, Statens Serum Institut, Copenhagen, Denmark
| | - Simon Francis Thomsen
- Department of Dermato-Venereology & Wound Healing Centre, Bispebjerg Hospital, Copenhagen, Denmark; Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Gregor Borut Jemec
- Zealand University Hospital, Department of Dermatology, Roskilde, Health Sciences Faculty, University of Copenhagen, Denmark
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Watt SK, Fransgaard T, Degett TH, Thygesen LC, Benfield T, Knudsen JD, Fuursted K, Jensen TG, Dessau RB, Schønheyder HC, Møller JK, Gögenur I. Associations between blood cultures after surgery for colorectal cancer and long-term oncological outcomes. Br J Surg 2019; 107:310-315. [PMID: 31755092 DOI: 10.1002/bjs.11372] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/11/2019] [Accepted: 08/27/2019] [Indexed: 11/08/2022]
Abstract
BACKGROUND Systemic inflammation following curative surgery for colorectal cancer may be associated with increased risk of recurrence. [Correction added on 29 November 2019, after first online publication: text amended for accuracy.] This study investigated whether a clinically suspected infection, for which blood cultures were sent within 30 days after surgery for colorectal cancer, was associated with long-term oncological outcomes. METHODS This register-based national cohort study included all Danish residents undergoing surgery with curative intent for colorectal cancer between January 2003 and December 2013. Patients who developed recurrence or died within 180 days after surgery were not included. Associations between blood cultures taken within 30 days after primary surgery and overall survival, disease-free survival and recurrence-free survival were analysed using Cox regression models adjusted for relevant clinical confounders, including demographic data, cancer stage, co-morbidity, blood transfusion, postoperative complications and adjuvant chemotherapy. RESULTS The study included 21 349 patients, of whom 3390 (15·9 per cent) had blood cultures taken within 30 days after surgery. Median follow-up was 5·6 years. Patients who had blood cultures taken had an increased risk of all-cause mortality (hazard ratio (HR) 1·27, 95 per cent c.i. 1·20 to 1·35; P < 0·001), poorer disease-free survival (HR 1·22, 1·16 to 1·29; P < 0·001) and higher risk of recurrence (HR 1·15, 1·07 to 1·23; P < 0·001) than patients who did not have blood cultures taken. CONCLUSION A clinically suspected infection requiring blood cultures within 30 days of surgery for colorectal cancer was associated with poorer oncological outcomes.
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Affiliation(s)
- S K Watt
- Department of Surgery, Zealand University Hospital Køge/Roskilde, Køge, Denmark
| | - T Fransgaard
- Department of Surgery, Zealand University Hospital Køge/Roskilde, Køge, Denmark
| | - T H Degett
- Department of Surgery, Zealand University Hospital Køge/Roskilde, Køge, Denmark
| | - L C Thygesen
- National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark
| | - T Benfield
- Department of Infectious Diseases, Copenhagen University Hospital, Amager/Hvidovre, Hvidovre, Denmark
| | - J D Knudsen
- Department of Clinical Microbiology, Copenhagen University Hospital Amager/Hvidovre Hospital, Hvidovre, Denmark
| | - K Fuursted
- Department of Bacteria, Parasites and Fungi, Statens Serum Institute, Copenhagen, Denmark
| | - T G Jensen
- Department of Clinical Microbiology, Odense University Hospital, Odense, Denmark
| | - R B Dessau
- Department of Clinical Microbiology, Slagelse Hospital, Slagelse, Denmark
| | - H C Schønheyder
- Department of Clinical Microbiology, Aalborg University Hospital, Aalborg, Denmark
| | - J K Møller
- Department of Clinical Microbiology, Lillebaelt Hospital, Vejle, Denmark
| | - I Gögenur
- Department of Surgery, Zealand University Hospital Køge/Roskilde, Køge, Denmark
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Tøttrup M, Søballe K, Bibby BM, Hardlei TF, Hansen P, Fuursted K, Birke-Sørensen H, Bue M. Bone, subcutaneous tissue and plasma pharmacokinetics of cefuroxime in total knee replacement patients - a randomized controlled trial comparing continuous and short-term infusion. APMIS 2019; 127:779-788. [PMID: 31515843 DOI: 10.1111/apm.12996] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 09/06/2019] [Indexed: 11/28/2022]
Abstract
Cefuroxime is widely used as antibiotic prophylaxis for orthopaedic procedures. We evaluated bone, subcutaneous tissue (SCT) and plasma pharmacokinetics of cefuroxime in male patients undergoing total knee replacement (TKR) after both traditional short-term infusion (STI) and continuous infusion (CI). Eighteen male patients undergoing TKR were randomly assigned to STI or CI of 1.5 g of cefuroxime. Measurements were obtained in plasma, SCT, cancellous and cortical bone every 30 min for 8 h following surgery. For sampling in solid tissues, microdialysis was applied. Population pharmacokinetic modelling was performed in order to estimate pharmacokinetic parameters, and to assess the probability of attaining cefuroxime concentrations above clinically relevant minimal inhibitory concentrations (MICs) for 65% and 90% of the 8 h dosing interval. Low SCT and cortical bone penetration were found in both the STI and the CI group, but the findings were only significant in the STI group. Irrespective of MIC, tissue and target, CI leads to improved probability of attaining relevant pharmacokinetic targets compared with STI. For the Staphylococcus aureus MIC breakpoint (4 μg/mL), STI leads to inadequate probability of target attainment. CI of 1.5 g of cefuroxime leads to improved probability of attaining relevant pharmacokinetic targets in male TKR patients compared with traditional STI. These findings suggest that application of CI may improve antibiotic prophylaxis for male TKR patients.
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Affiliation(s)
- Mikkel Tøttrup
- Department of Orthopaedic Surgery, Horsens Regional Hospital, Horsens, Denmark.,Orthopaedic Research Unit, Aarhus University Hospital, Aarhus, Denmark.,Department of Orthopaedic Surgery, Aalborg University Hospital, Farsø, Denmark
| | - Kjeld Søballe
- Orthopaedic Research Unit, Aarhus University Hospital, Aarhus, Denmark.,Department of Orthopaedic Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Bo M Bibby
- Department of Biostatistics, Aarhus University, Aarhus, Denmark
| | - Tore F Hardlei
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Peter Hansen
- Department of Orthopaedic Surgery, Horsens Regional Hospital, Horsens, Denmark
| | | | | | - Mats Bue
- Department of Orthopaedic Surgery, Horsens Regional Hospital, Horsens, Denmark.,Orthopaedic Research Unit, Aarhus University Hospital, Aarhus, Denmark
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Raeven RHM, van der Maas L, Pennings JLA, Fuursted K, Jørgensen CS, van Riet E, Metz B, Kersten GFA, Dalby T. Antibody Specificity Following a Recent Bordetella pertussis Infection in Adolescence Is Correlated With the Pertussis Vaccine Received in Childhood. Front Immunol 2019; 10:1364. [PMID: 31275314 PMCID: PMC6592373 DOI: 10.3389/fimmu.2019.01364] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 05/29/2019] [Indexed: 12/19/2022] Open
Abstract
Bordetella (B.) pertussis resurgence affects not only the unvaccinated, but also the vaccinated population. Different vaccines are available, however, it is currently unknown whether the type of childhood vaccination has an influence on antibody responses following a B. pertussis infection later in life. Therefore, the study aim was to profile serum antibody responses in young adults with suspected B. pertussis infections, immunized during childhood with either whole-cell (wPV) or monocomponent acellular pertussis (aPV) vaccines. Serum anti-pertussis toxin (PTx) IgG antibody levels served as an indicator for a recent B. pertussis infection. Leftover sera from a diagnostic laboratory from 36 Danish individuals were included and divided into four groups based on immunization background (aPV vs. wPV) and serum anti-PTx IgG levels (– vs. +). Pertussis-specific IgG/IgA antibody levels and antigen specificity were determined by using multiplex immunoassays (MIA), one- and two-dimensional immunoblotting (1 & 2DEWB), and mass spectrometry. Besides enhanced anti-PTx levels, wPV(+) and aPV(+) groups showed increased IgG and IgA levels against pertactin, filamentous hemagglutinin, fimbriae 2/3, and pertussis outer membrane vesicles (OMV). In the wPV(–) and aPV(–) groups, only low levels of anti-OMV antibodies were detected. 1DEWB demonstrated that antibody patterns differed between groups but also between individuals with the same immunization background and anti-PTx levels. 2DWB analysis for serum IgG revealed 133 immunogenic antigens of which 40 were significantly different between groups allowing to differentiate wPV(+) and aPV(+) groups. Similarly, for serum IgA, 7 of 47 immunogenic protein spots were significantly different. This study demonstrated that B. pertussis infection-induced antibody responses were distinct on antigen level between individuals with either wPV or aPV immunization background. Importantly, only 2DEWB and not MIA could detect these differences indicating the potential of this method. Moreover, in individuals immunized with an aPV containing only PTx in childhood, the infection-induced antibody responses were not limited to PTx alone.
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Affiliation(s)
- René H M Raeven
- Intravacc (Institute for Translational Vaccinology), Bilthoven, Netherlands
| | | | - Jeroen L A Pennings
- Centre for Health Protection, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - Kurt Fuursted
- Statens Serum Institut, Infectious Disease Preparedness, Copenhagen, Denmark
| | | | - Elly van Riet
- Intravacc (Institute for Translational Vaccinology), Bilthoven, Netherlands
| | - Bernard Metz
- Intravacc (Institute for Translational Vaccinology), Bilthoven, Netherlands
| | - Gideon F A Kersten
- Intravacc (Institute for Translational Vaccinology), Bilthoven, Netherlands.,Leiden Academic Center for Drug Research, Division of Biotherapeutics, Leiden University, Leiden, Netherlands
| | - Tine Dalby
- Statens Serum Institut, Infectious Disease Preparedness, Copenhagen, Denmark
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