<abstract xmlns="http://www.w3.org/1999/xhtml"><p>There is growing concern about human-induced antibiotic resistance and on the occurrence of antibiotic-resistant, potentially pathogenic bacteria in the environment. The aim of this study was to investigate the incidence of resistant, clinically relevant bacteria at bathing sites. In total, 27 of 263 bathing sites authorized under the EU Bathing Water Directive (3 per Austrian state) were sampled during the summer of 2017. Samples were tested for antibiotic-resistant bacteria by enrichment in thioglycollate broth and cultivation on chromogenic media. The screening for potentially pathogenic antibiotic-resistant bacteria was negative in 23 of the 27 samples. Antibiotic-resistant bacteria were detected from 4 of the 27 bathing sites: one <italic>Pseudomonas aeruginosa</italic> and three resistant <italic>Enterobacteriaceae</italic> (piperacillin/tazobactam-resistant <italic>Enterobacter cloacae</italic> with high-level expression of AmpC beta-lactamase, carbapenem-resistant <italic>Enterobacter mori</italic>, extended-spectrum beta-lactamase-producing <italic>Escherichia coli</italic>). Despite the occurrence of resistant bacteria, we consider the public health risk at Austrian bathing sites as low.</p></abstract>

There is growing concern about human-induced antibiotic resistance and on the occurrence of antibiotic-resistant, potentially pathogenic bacteria in the environment. The aim of this study was to investigate the incidence of resistant, clinically relevant bacteria at bathing sites. In total, 27 of 263 bathing sites authorized under the EU Bathing Water Directive (3 per Austrian state) were sampled during the summer of 2017. Samples were tested for antibiotic-resistant bacteria by enrichment in thioglycollate broth and cultivation on chromogenic media. The screening for potentially pathogenic antibiotic-resistant bacteria was negative in 23 of the 27 samples. Antibiotic-resistant bacteria were detected from 4 of the 27 bathing sites: one Pseudomonas aeruginosa and three resistant Enterobacteriaceae (piperacillin/tazobactam-resistant Enterobacter cloacae with high-level expression of AmpC beta-lactamase, carbapenem-resistant Enterobacter mori, extended-spectrum beta-lactamase-producing Escherichia coli). Despite the occurrence of resistant bacteria, we consider the public health risk at Austrian bathing sites as low.

Austria-wide survey on resistant, potentially pathogenic bacteria at Austrian bathing sites, 2017

<trans-abstract xml:lang="de" xmlns="http://www.w3.org/1999/xhtml"><p>Die Besorgnis über vom Menschen verursachte Antibiotikaresistenzen und das Auftreten von antibiotikaresistenten, potenziell pathogenen Bakterien in der Umwelt wächst. In Österreich gibt es 263 Badestellen, die als EU-Badegewässer definiert sind. Ziel dieser Studie war es, das Vorkommen von resistenten, klinisch relevanten Bakterien in derartigen Badegewässern zu untersuchen. In der Badesaison 2017 wurden 27 EU-Badestellen (drei Badestellen pro Bundesland) beprobt. Die Wasserproben wurden durch Anreicherung in Thioglykolat-Bouillon und Kultivierung auf chromogenen Nährmedien auf antibiotikaresistente Bakterien getestet. Dreiundzwanzig der 27 Proben waren frei von antibiotikaresistenten, potenziell pathogenen Bakterien. Resistente Bakterien wurden für vier der 27 Badestellen nachgewiesen: einmal <italic>Pseudomonas aeruginosa</italic> und dreimal resistente <italic>Enterobacteriaceae</italic> (piperacillin/tazobactam-resistenter <italic>Enterobacter cloacae</italic> mit AmpC-Überexpression, carbapenem-resistenter <italic>Enterobacter mori</italic>, Extended-Spectrum-Beta-Lactamase-produzierendes <italic>Escherichia coli</italic>). Trotz dem Auftreten resistenter Bakterien in österreichischen Badestellen stufen wir das dadurch bedingte Gesundheitsrisiko als niedrig ein.</p></trans-abstract>

Die Besorgnis über vom Menschen verursachte Antibiotikaresistenzen und das Auftreten von antibiotikaresistenten, potenziell pathogenen Bakterien in der Umwelt wächst. In Österreich gibt es 263 Badestellen, die als EU-Badegewässer definiert sind. Ziel dieser Studie war es, das Vorkommen von resistenten, klinisch relevanten Bakterien in derartigen Badegewässern zu untersuchen. In der Badesaison 2017 wurden 27 EU-Badestellen (drei Badestellen pro Bundesland) beprobt. Die Wasserproben wurden durch Anreicherung in Thioglykolat-Bouillon und Kultivierung auf chromogenen Nährmedien auf antibiotikaresistente Bakterien getestet. Dreiundzwanzig der 27 Proben waren frei von antibiotikaresistenten, potenziell pathogenen Bakterien. Resistente Bakterien wurden für vier der 27 Badestellen nachgewiesen: einmal Pseudomonas aeruginosa und dreimal resistente Enterobacteriaceae (piperacillin/tazobactam-resistenter Enterobacter cloacae mit AmpC-Überexpression, carbapenem-resistenter Enterobacter mori, Extended-Spectrum-Beta-Lactamase-produzierendes Escherichia coli). Trotz dem Auftreten resistenter Bakterien in österreichischen Badestellen stufen wir das dadurch bedingte Gesundheitsrisiko als niedrig ein.

Die Bodenkultur: Journal of Land Management, Food and Environment

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Österreichweite Studie zum Vorkommen resistenter potenziell pathogener Bakterien in österreichischen Badestellen, 2017

There is growing concern about human-induced antibiotic resistance and on the occurrence of antibiotic-resistant, potentially pathogenic bacteria in the...

Austria-wide survey on resistant, potentially pathogenic bacteria at Austrian bathing sites, 2017

Article Category: Research Article

Published Online: Oct 26, 2019

Page range: 81 - 88

Received: May 06, 2019

Accepted: Jul 19, 2019

DOI: https://doi.org/10.2478/boku-2019-0007

Keywords
antimicrobial resistance, surface water, pathogens, risk assessment, public health

© 2019 Sarah Lepuschitz, Elisabeth Arnberger, Norbert Inreiter, Burkhard Springer, Franz Allerberger, Werner Ruppitsch, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Austria-wide survey on resistant, potentially pathogenic bacteria at Austrian bathing sites, 2017

Article Category: Research Article

Published Online: Oct 26, 2019

Page range: 81 - 88

Received: May 06, 2019

Accepted: Jul 19, 2019

DOI: https://doi.org/10.2478/boku-2019-0007

Keywordsantimicrobial resistance, surface water, pathogens, risk assessment, public health

© 2019 Sarah Lepuschitz, Elisabeth Arnberger, Norbert Inreiter, Burkhard Springer, Franz Allerberger, Werner Ruppitsch, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
antimicrobial resistance, surface water, pathogens, risk assessment, public health