Absence of extended-spectrum- -lactamase-producing Escherichia coli isolates in migratory birds: song thrush (Turdus philomelos)

Silva, Nuno; Felgar, Ana; Gonçalves, Alexandre; Correia, Susana; Pacheco, Ricardo; Araújo, Carlos; Igrejas, Gilberto; Poeta, Patrícia

doi:10.1093/jac/dkq125

Cited by 10 publications

(6 citation statements)

References 3 publications

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“…Our results from Collared Flycatchers with an absence of ESBL-producing bacteria are in concordance with the study on Song Thrushes in Portugal (14). In the German study, however, ESBLs were found in two Blackbirds, demonstrating prevalence among Passerines (15).…”

supporting

confidence: 92%

“…have been published. One study included 154 Song Thrushes ( Turdus philomelos ) in Portugal and no ESBL-producing bacteria were found (14), and in one study from Germany, samples from 99 Passerines were analyzed and ESBLs of the genotype CTX-M 15 were found in two Blackbirds ( Turdus merula ) (15). Furthermore, it has been shown that White-throated Dippers ( Cinclus cinclus ) and Garden Warblers ( Sylvia borin ) can carry E. coli resistant to several antibiotics, but no ESBL was found (16).…”

mentioning

confidence: 99%

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Zero prevalence of extended spectrum beta-lactamase-producing bacteria in 300 breeding Collared Flycatchers in Sweden

Järhult

Stedt

Gustafsson

2013

Infection Ecology & Epidemiology

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Wild birds are important indicators and potential spreaders of antibiotic resistance. The order Passerines is scarcely studied apart from Corvus sp. but extended spectrum beta-lactamases (ESBLs) has been found in Blackbirds. We tested 300 fecal samples from a well-studied population of Collared Flycatchers (Ficedula albicollis) at the Island of Gotland in Sweden and found no ESBL-producing bacteria. These results support the idea of ‘ecological guild’ as Blackbirds are ground-foraging invertebrate feeders, whereas Collared Flycatchers are aerial insectivores not regularly coming into contact with fecal contaminations and therefore less prone to acquire pathogens spread by the fecal–oral route.

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supporting

confidence: 92%

mentioning

confidence: 99%

Zero prevalence of extended spectrum beta-lactamase-producing bacteria in 300 breeding Collared Flycatchers in Sweden

Järhult

Stedt

Gustafsson

2013

Infection Ecology & Epidemiology

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“…Our results from Passeriformes with an absence of ESBL-producing bacteria are in agreement with other similar studies carried out in Portugal (Silva et al 2010) and in Sweden (Jarhult et al 2013). …”

Section: Discussionsupporting

confidence: 93%

Antibiotic resistance assessment in bacteria isolated in migratory Passeriformes transiting through the Metaponto territory (Basilicata, Italy)

et al. 2017

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Background: Wild birds are considered to be reservoirs of human enteric pathogens and vectors of antimicrobial resistance dissemination in the environment. During their annual migration, they play a potential role in the epidemiology of human associated zoonoses. The aim of this study was to investigate the frequency of isolation and antimicrobial susceptibility profiles of microorganisms found in the cloaca of common European passerines. Methods:One hundred and twenty-one cloacal swabs were collected during a monitoring program of migratory birds in the Forest Reserve for Protection "Metaponto" (Basilicata, Italy). All samples were cultured using standard bacteriological methods and antibiotic susceptibility testing (agar disk diffusion test) of isolated strains was performed. Results:The bacteriological analysis produced 122 strains belonging to 18 different species. The most commonly isolated species were Enterobacter cloacae and Providencia rettgeri (21 strains, 17.2%). Potentially pathogenic species including Klebsiella pneumoniae, Serratia marcescens and Pseudomonas spp. have also been identified. Isolates showed significant frequencies of antimicrobial resistance. The highest frequency of resistance was observed against amoxicillin (n = 79, 64.8%); ampicillin (n = 77, 63.1%); rifampicin (n = 75, 61.5%); amoxicillin-clavulanic acid (n = 66, 54.1%). Thirty-one strains (25.4%) showed resistance to imipenem and 8 (6.6%) to meropenem. Conclusions:Migratory birds play an important role in the ecology, circulation and dissemination of potentially pathogenic antimicrobial resistant organisms. They can therefore be considered sentinel species and environmental health indicators. Our results suggest that the integration of epidemiological surveillance networks during ringing campaigns of wild species can be an effective tool to study this phenomenon.

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“…Additionally, but less investigated, large numbers of migratory birds that winter in South America return to their breeding grounds in North America each spring, potentially carrying ESBL-producing bacteria in their intestines. The majority of these birds are songbirds, and likely of limited importance for bacterial transmission to man since they seems to carry low levels of resistant bacteria [ 11 – 13 ]. However, the migratory avifauna also includes larger birds, and birds that occur in proximity to humans and domestic animals, thereby potentially allowing for dissemination of resistant bacteria between sources.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Extended-Spectrum β-Lactamase (ESBL) CTX-M Genotypes in Franklin Gulls from Canada and Chile

et al. 2015

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Migratory birds have been suggested to contribute to long-distance dispersal of antimicrobial resistant bacteria, but tests of this hypothesis are lacking. In this study we determined resistance profiles and genotypes of ESBL-producing bacteria in randomly selected Escherichia coli from Franklin´s gulls (Leucophaeus pipixcan) at breeding sites in Canada and compared with similar data from the gulls' wintering grounds in Chile. Resistant E. coli phenotypes were common, most notably to ampicillin (30.1%) and cefadroxil (15.1%). Furthermore, 17.0% of the gulls in Canada carried ESBL producing bacteria, which is higher than reported from human datasets from the same country. However, compared to gulls sampled in Chile (30.1%) the prevalence of ESBL was much lower. The dominant ESBL variants in Canada were bla CTX-M-14 and bla CTX-M-15 and differed in proportions to the data from Chile. We hypothesize that the observed differences in ESBL variants are more likely linked to recent exposure to bacteria from anthropogenic sources, suggesting high local dissemination of resistant bacteria both at breeding and non-breeding times rather than a significant trans-hemispheric exchange through migrating birds.

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Absence of extended-spectrum- -lactamase-producing Escherichia coli isolates in migratory birds: song thrush (Turdus philomelos)

Cited by 10 publications

References 3 publications

Zero prevalence of extended spectrum beta-lactamase-producing bacteria in 300 breeding Collared Flycatchers in Sweden

Zero prevalence of extended spectrum beta-lactamase-producing bacteria in 300 breeding Collared Flycatchers in Sweden

Antibiotic resistance assessment in bacteria isolated in migratory Passeriformes transiting through the Metaponto territory (Basilicata, Italy)

Comparison of Extended-Spectrum β-Lactamase (ESBL) CTX-M Genotypes in Franklin Gulls from Canada and Chile

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