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ESBL resistance patterns among environmental and clinical bacterial isolates
Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).ORCID-id: 0000-0002-8059-0156
Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).ORCID-id: 0000-0003-0724-2718
2017 (Engelska)Konferensbidrag, Muntlig presentation med publicerat abstract (Övrigt vetenskapligt)
Abstract [en]

Objectives

We have studied the phenotypic and genetic pattern among Extended Spectrum Beta-lactamase (ESBL) producing bacteria in the aquatic environment, and have compared the result with clinical samples from the same area.

Methods

Water samples have been collected at three different sites in the Helge river, Kristianstad community, Sweden. The first station is located before the outlet from the municipal sewage plant, the second just after the outlet and the third close to the Baltic Sea. Cultured bacterial isolates from the water and clinical isolates were analysed for phenotypic expression of ESBL related genes using the MAST-test, and genetically by PCR analyses of a set of ESBL genes, i.e. blaCTX-M, blaSHV, blaTEM, and blaOXA  

Results

Both clinical and environmental ESBL isolates were dominated by Escherichia coli and Klebsiella pneumoniae. Highest abundance of environmental ESBL isolates were obtained from the station close to the sewage outlet, the lowest close to the Baltic Sea. The gene cluster blaCTX-M was the most common among all isolates (65%), followed by blaTEM (30%).  The blaOXA and blaSHV genes were more common in clinical isolates.

Conclusion

A majority of the ESBL bacteria were mediated by chromosomal genes, dominated by blaCTX-M. However, blaOXA .and blaSHV were more common in clinical isolates. Further genetic analyses will be performed on more isolates, and on total bacterial community DNA.

 

Ort, förlag, år, upplaga, sidor
2017.
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:hkr:diva-17536OAI: oai:DiVA.org:hkr-17536DiVA, id: diva2:1150032
Konferens
Focused Meeting 2017: Antimicrobial Resistance and One Health 29 - 30 August 2017
Tillgänglig från: 2017-10-17 Skapad: 2017-10-17 Senast uppdaterad: 2017-10-17Bibliografiskt granskad

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Axelsson, Carolina

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Rehnstam-Holm, Ann-SofiAxelsson, Carolina
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Avdelningen för NaturvetenskapForskningsmiljön Man & Biosphere Health (MABH)
Naturvetenskap

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