Schwanbeck, Julian

[["dc.bibliographiccitation.firstpage","720"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Microorganisms"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Schwanbeck, Julian"],["dc.contributor.author","Bohne, Wolfgang"],["dc.contributor.author","Hasdemir, Ufuk"],["dc.contributor.author","Groß, Uwe"],["dc.contributor.author","Pfeifer, Yvonne"],["dc.contributor.author","Bunk, Boyke"],["dc.contributor.author","Riedel, Thomas"],["dc.contributor.author","Spröer, Cathrin"],["dc.contributor.author","Overmann, Jörg"],["dc.contributor.author","Zautner, Andreas E."],["dc.contributor.author","Frickmann, Hagen"],["dc.date.accessioned","2021-06-01T09:42:39Z"],["dc.date.available","2021-06-01T09:42:39Z"],["dc.date.issued","2021"],["dc.description.abstract","Mobile genetic elements, such as plasmids, facilitate the spread of antibiotic resistance genes in Enterobacterales. In line with this, we investigated the plasmid-resistome of seven blaOXA-48 gene-carrying Klebsiella pneumoniae isolates, which were isolated between 2013 and 2014 at the University Medical Center in Göttingen, Germany. All isolates were subjected to complete genome sequencing including the reconstruction of entire plasmid sequences. In addition, phenotypic resistance testing was conducted. The seven isolates comprised both disease-associated isolates and colonizers isolated from five patients. They fell into two clusters of three sequence type (ST)101 and two ST11 isolates, respectively; and ST15 and ST23 singletons. The seven isolates harbored various plasmids of the incompatibility (Inc) groups IncF, IncL/M, IncN, IncR, and a novel plasmid chimera. All blaOXA-48 genes were encoded on the IncL/M plasmids. Of note, distinct phenotypical resistance patterns associated with different sets of resistance genes encoded by IncL/M and IncR plasmids were observed among isolates of the ST101 cluster in spite of high phylogenetic relatedness of the bacterial chromosomes, suggesting nosocomial transmission. This highlights the importance of plasmid uptake and plasmid recombination events for the fast generation of resistance variability after clonal transmission. In conclusion, this study contributes a piece in the puzzle of molecular epidemiology of resistance gene-carrying plasmids in K. pneumoniae in Germany."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.3390/microorganisms9040720"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/85312"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation.eissn","2076-2607"],["dc.relation.orgunit","Institut für Medizinische Mikrobiologie"],["dc.rights","CC BY 4.0"],["dc.title","Detection of a New Resistance-Mediating Plasmid Chimera in a blaOXA-48-Positive Klebsiella pneumoniae Strain at a German University Hospital"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","481"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Journal of Antibiotics"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Tilkorn, Friederike K. M. T."],["dc.contributor.author","Frickmann, Hagen"],["dc.contributor.author","Simon, Isabel S."],["dc.contributor.author","Schwanbeck, Julian"],["dc.contributor.author","Horn, Sebastian"],["dc.contributor.author","Zimmermann, Ortrud"],["dc.contributor.author","Groß, Uwe"],["dc.contributor.author","Bohne, Wolfgang"],["dc.contributor.author","Zautner, Andreas Erich"],["dc.date.accessioned","2020-08-06T06:04:43Z"],["dc.date.available","2020-08-06T06:04:43Z"],["dc.date.issued","2020"],["dc.description.abstract","Young children are frequently colonized with Clostridioides (C.) difficile. Depending on their resistance patterns, antibiotic treatment can facilitate gastrointestinal spreading in colonized individuals, potentially leading to transmission to others. C. difficile was isolated from stool samples from infants born in two hospitals in Göttingen and Darmstadt, Germany. All isolates were subjected to phenotypic antimicrobial resistance testing, PCR-based screening for toxin genes and mass spectrometry-based exclusion of ribotypes 027 and 176. Within an initial cohort of 324 neonates with a longitudinal survey of C. difficile, 137 strains were isolated from 48 individuals. Antimicrobial resistance was recorded against metronidazole in one (0.7%), erythromycin in 16 (11.7%) and moxifloxacin in 2 (1.5%) of the strains, whereas no resistance was observed against vancomycin (0.0%) or rifampicin (0.0%). Newly observed resistance against erythromycin in children with detection of previously completely sensitive isolates was reported for C. difficile isolates from 2 out of 48 children. In 20 children (42%), non-toxigenic strains were detected, and from 27 children (56%), toxigenic strains were isolated, while both toxigenic and non-toxigenic strains were recorded for 1 child (2%). Ribotypes 027 or 176 were not observed. In conclusion, the German C. difficile strains isolated from the children showed mild to moderate resistance with predominance of macrolide resistance, a substance class which is frequently applied in children. The observed switches to the dominance of macrolide-resistant isolates suggests likely selection of resistant C. difficile strains already in children"],["dc.identifier.doi","10.3390/antibiotics9080481"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17510"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/67527"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","MDPI"],["dc.relation.eissn","2079-6382"],["dc.relation.issn","2079-6382"],["dc.relation.orgunit","Institut für Medizinische Mikrobiologie"],["dc.rights","https://creativecommons.org/licenses/by/4.0/"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.gro","C. difficile"],["dc.subject.gro","Rifaximin"],["dc.title","Antimicrobial Resistance Patterns in Clostridioides difficile Strains Isolated from Neonates in Germany"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","78"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Diagnostics"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Dörschug, Anja"],["dc.contributor.author","Schwanbeck, Julian"],["dc.contributor.author","Hahn, Andreas"],["dc.contributor.author","Hillebrecht, Anke"],["dc.contributor.author","Blaschke, Sabine"],["dc.contributor.author","Mese, Kemal"],["dc.contributor.author","Groß, Uwe"],["dc.contributor.author","Dierks, Sascha"],["dc.contributor.author","Frickmann, Hagen"],["dc.contributor.author","Zautner, Andreas E."],["dc.date.accessioned","2021-04-14T08:29:44Z"],["dc.date.available","2021-04-14T08:29:44Z"],["dc.date.issued","2021"],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.3390/diagnostics11010078"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/82978"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","2075-4418"],["dc.relation.orgunit","Institut für Medizinische Mikrobiologie"],["dc.rights","CC BY 4.0"],["dc.title","Comparison of Five Serological Assays for the Detection of SARS-CoV-2 Antibodies"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","426"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Diagnostics"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Dörschug, Anja"],["dc.contributor.author","Frickmann, Hagen"],["dc.contributor.author","Schwanbeck, Julian"],["dc.contributor.author","Yilmaz, Elif"],["dc.contributor.author","Mese, Kemal"],["dc.contributor.author","Hahn, Andreas"],["dc.contributor.author","Groß, Uwe"],["dc.contributor.author","Zautner, Andreas E."],["dc.date.accessioned","2021-04-14T08:27:55Z"],["dc.date.available","2021-04-14T08:27:55Z"],["dc.date.issued","2021"],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.3390/diagnostics11030426"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/82450"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","2075-4418"],["dc.relation.orgunit","Institut für Medizinische Mikrobiologie"],["dc.rights","CC BY 4.0"],["dc.title","Comparative Assessment of Sera from Individuals after S-Gene RNA-Based SARS-CoV-2 Vaccination with Spike-Protein-Based and Nucleocapsid-Based Serological Assays"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2404"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Journal of Clinical Medicine"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Dierks, Sascha"],["dc.contributor.author","Bader, Oliver"],["dc.contributor.author","Schwanbeck, Julian"],["dc.contributor.author","Groß, Uwe"],["dc.contributor.author","Weig, Michael"],["dc.contributor.author","Mese, Kemal"],["dc.contributor.author","Lugert, Raimond"],["dc.contributor.author","Bohne, Wolfgang"],["dc.contributor.author","Hahn, Andreas"],["dc.contributor.author","Zautner, Andreas"],["dc.contributor.author","Feltgen, Nicolas"],["dc.contributor.author","Torkieh, Setare"],["dc.contributor.author","Denker, Fenja"],["dc.contributor.author","Lauermann, Peer"],["dc.contributor.author","Storch, Marcus"],["dc.contributor.author","Frickmann, Hagen"],["dc.date.accessioned","2021-07-05T15:00:47Z"],["dc.date.available","2021-07-05T15:00:47Z"],["dc.date.issued","2021"],["dc.description.abstract","This study was performed as a head-to-head comparison of the performance characteristics of (1) two SARS-CoV-2-specific rapid antigen assays with real-time PCR as gold standard as well as (2) a fully automated high-throughput transcription-mediated amplification (TMA) assay and real-time PCR in a latent class analysis-based test comparison without a gold standard with several hundred samples in a low prevalence “real world” setting. Recorded sensitivity and specificity of the NADAL and the LumiraDx antigen assays and the Hologic Aptima SARS-CoV-2 TMA assay were 0.1429 (0.0194, 0.5835), 0.7644 (0.7016, 0.8174), and 0.7157 (0, 1) as well as 0.4545 (0.2022, 0.7326), 0.9954 (0.9817, 0.9988), and 0.9997 (not estimable), respectively. Agreement kappa between the positive results of the two antigen-based assays was 0.060 (0.002, 0.167) and 0.659 (0.492, 0.825) for TMA and real-time PCR. Samples with low viral load as indicated by cycle threshold (Ct) values > 30 were generally missed by both antigen assays, while 1:10 pooling suggested higher sensitivity of TMA compared to real-time PCR. In conclusion, both sensitivity and specificity speak in favor of the use of the LumiraDx rather than the NADAL antigen assay, while TMA results are comparably as accurate as PCR, when applied in a low prevalence setting."],["dc.description.abstract","This study was performed as a head-to-head comparison of the performance characteristics of (1) two SARS-CoV-2-specific rapid antigen assays with real-time PCR as gold standard as well as (2) a fully automated high-throughput transcription-mediated amplification (TMA) assay and real-time PCR in a latent class analysis-based test comparison without a gold standard with several hundred samples in a low prevalence “real world” setting. Recorded sensitivity and specificity of the NADAL and the LumiraDx antigen assays and the Hologic Aptima SARS-CoV-2 TMA assay were 0.1429 (0.0194, 0.5835), 0.7644 (0.7016, 0.8174), and 0.7157 (0, 1) as well as 0.4545 (0.2022, 0.7326), 0.9954 (0.9817, 0.9988), and 0.9997 (not estimable), respectively. Agreement kappa between the positive results of the two antigen-based assays was 0.060 (0.002, 0.167) and 0.659 (0.492, 0.825) for TMA and real-time PCR. Samples with low viral load as indicated by cycle threshold (Ct) values > 30 were generally missed by both antigen assays, while 1:10 pooling suggested higher sensitivity of TMA compared to real-time PCR. In conclusion, both sensitivity and specificity speak in favor of the use of the LumiraDx rather than the NADAL antigen assay, while TMA results are comparably as accurate as PCR, when applied in a low prevalence setting."],["dc.identifier.doi","10.3390/jcm10112404"],["dc.identifier.pii","jcm10112404"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/87903"],["dc.language.iso","en"],["dc.notes.intern","DOI Import DOI-Import GROB-441"],["dc.publisher","MDPI"],["dc.relation.eissn","2077-0383"],["dc.rights","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Diagnosing SARS-CoV-2 with Antigen Testing, Transcription-Mediated Amplification and Real-Time PCR"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]