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Wild Australian birds and drug-resistant bacteria : Characterisation of antibiotic-resistant Escherichia coli and Enterococcus spp

- Smith, Hannah, Clarke, Rohan, Larkins, Jo-Ann, Bean, David, Greenhill, Andrew

  • Authors: Smith, Hannah , Clarke, Rohan , Larkins, Jo-Ann , Bean, David , Greenhill, Andrew
  • Date: 2019
  • Type: Text , Journal article
  • Relation: Emu-Austral Ornithology Vol. 119, no. 4 (2019), p. 384-390
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  • Description: Birds can spread microorganisms through their movement; however, it is still not fully understood how wild birds acquire and disperse antimicrobial-resistant (AMR) bacteria. We sampled wild Australian birds from three geographically distinct locations for the presence of AMR strains of two clinically important species of bacteria, Escherichia coli and Enterococcus spp. A total of 121 birds were sampled, representing 15 different species. Thirty E. coli and 54 Enterococcus isolates were tested for resistance to 12 and 8 different antibiotics, respectively. Resistance to at least one antibiotic was common, being detected in 96% of Enterococcus and 60% of E. coli isolates. The vancomycin-resistance genes vanA and vanD were detected in 22% of enterococci (13% vanA, 9% vanD), while 9% displayed phenotypic resistance with no associated gene. Wild birds are a carrier of AMR bacteria in Australia, and are capable of harbouring a more diverse range of vancomycin-resistance genes than is typically seen among Australian clinical isolates.

Draft genome sequences of four citrobacter isolates recovered from wild australian shorebirds

- Smith, Hannah, Bean, David, Pitchers, William, Valcanis, Mary, Clarke, Rohan, Loyn, Richard, Hassell, Chris, Greenhill, Andrew

  • Authors: Smith, Hannah , Bean, David , Pitchers, William , Valcanis, Mary , Clarke, Rohan , Loyn, Richard , Hassell, Chris , Greenhill, Andrew
  • Date: 2021
  • Type: Text , Journal article
  • Relation: Microbiology Resource Announcements Vol. 10, no. 1 (2021), p.
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  • Description: Citrobacter is a ubiquitous bacterial genus whose members inhabit a variety of niches. Some species are clinically important for both antimicrobial resistance (AMR) carriage and as the cause of nosocomial infections. Surveillance of Citrobacter species in the environment can provide indicators of the spread of AMR genes outside clinical spaces. In this study, we present draft genome sequences of four Citrobacter isolates obtained from three species of wild Australian shorebirds. Copyright © 2021 Smith et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license.
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