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Titel: Molecular investigation of isolates from a multistate polymicrobial outbreak associated with contaminated total parenteral nutrition in Brazil
Autor/-in: Pillonetto, Marcelo
Arend, Lavinia
Gomes, Suzie M. T.
Oliveira, Marluce A. A.
Timm, Loeci N.
Martins, Andreza F.
Barth, Afonso L.
Mazzetti, Alana
Hersemann, Lena
Smits, Theo H. M.
Mira, Marcelo T.
Rezzonico, Fabio
Erschienen in: BMC Infectious Diseases
Band(Heft): 18
Heft: 397
Seiten: 1
Seiten bis: 11
Verlag / Hrsg. Institution: BioMed Central
Erscheinungsdatum: 13-Aug-2018
Lizenz (gemäss Verlagsvertrag): CC BY 4.0: Namensnennung 4.0 International
Art der Begutachtung: Open peer review
Sprache: Englisch
Schlagwörter: Acinetobacter baumannii; Rhizobium radiobacter; Rep-PCR; Bacterial identification; Phytobacter diazotrophicus; Pantoea; TPN
Fachgebiet (DDC): 570: Biologie
616: Innere Medizin und Krankheiten
Zusammenfassung: Background: Between November 2013 and June 2014, 56 cases of bacteremia (15 deaths) associated with the use of Total Parenteral Nutrition (TPN) and/or calcium gluconate (CG) were reported in four Brazilian states. Methods: We analyzed 73 bacterial isolates from four states: 45 from blood, 25 from TPN and three from CG, originally identified as Acinetobacter baumannii, Rhizobium radiobacter, Pantoea sp. or Enterobacteriaceae using molecular methods. Results: The first two bacterial species were confirmed while the third group of species could not be identified using standard identification protocols. These isolates were subsequently identified by Multi-Locus Sequence Analysis as Phytobacter diazotrophicus, a species related to strains from similar outbreaks in the United States in the 1970’s. Within each species, TPN and blood isolates proved to be clonal, whereas the R. radiobacter isolates retrieved from CG were found to be unrelated. Conclusion: This is the first report of a three-species outbreak caused by TPN contaminated with A. baumannii, R. radiobacter and P. diazotrophicus. The concomitant presence of clonal A. baumannii and P. diazotrophicus isolates in several TPN and blood samples, as well as the case of one patient, where all three different species were isolated simultaneously, suggest that the outbreak may be ascribed to a discrete contamination of TPN. In addition, this study highlights the clinical relevance of P. diazotrophicus, which has been involved in outbreaks in the past, but was often misidentified as P. agglomerans.
Departement: Life Sciences und Facility Management
Organisationseinheit: Institut für Umwelt und Natürliche Ressourcen (IUNR)
Publikationstyp: Beitrag in wissenschaftlicher Zeitschrift
DOI: 10.1186/s12879-018-3287-2
10.21256/zhaw-4685
ISSN: 1471-2334
URI: https://digitalcollection.zhaw.ch/handle/11475/9133
Publiziert im Rahmen des ZHAW-Projekts: Sepsis-Associated Microorganisms in Brazilian Ambulatories (SAMBA)
Enthalten in den Sammlungen:Publikationen Life Sciences und Facility Management

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