ArticleBMC veterinary research2026
Antibiotic resistance patterns of Escherichia coli isolates in Passeriformes and non-Passeriformes: insights from migratory and resident avifauna.
Article in BMC veterinary research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
12 authors.
Funding
Abstract
backgroundAntimicrobial resistance (AMR) represents a major global One Health challenge, with increasing recognition of the role of wildlife in the environmental circulation of resistant bacteria. Wild birds, particularly those inhabiting urbanized migratory bottlenecks, may act as sentinels reflecting anthropogenic selective pressures. However, the relative contribution of migratory behaviour versus local environmental exposure to AMR carriage in avifauna remains insufficiently characterized.
methodsA total of 339 fecal samples were collected from 44 avian species during migration periods in Istanbul, Turkey. E. coli isolates were identified using standard bacteriological methods and an automated identification system. Antimicrobial susceptibility testing was conducted using 16 agents representing six antimicrobial classes. Selected antimicrobial resistance genes were screened by PCR, and resistance patterns were compared according to migratory status.
resultsEscherichia coli was recovered from 46 of the 339 samples (13.5%). Phenotypic resistance to at least one antimicrobial agent was observed in 65.2% of isolates. A high proportion of isolates exhibited increased tigecycline minimum inhibitory concentrations exceeding epidemiological cut-off values, indicating non-wild-type phenotypes. No resistance to colistin or meropenem was detected, and none of the isolates were classified as ESBL-producing or multidrug-resistant. Although no statistically significant differences were detected between migratory and resident bird groups with respect to overall AMR prevalence, 83.3% of the detected resistance genes were identified in isolates from resident or mixed-status birds.
conclusionsThe findings suggest that local environmental exposure in urban areas may play a more significant role than long-distance migratory movements in the acquisition of AMR markers in wild birds. Simultaneously, the identification of non-wild-type tigecycline phenotypes highlights their consideration in comprehensive One Health monitoring initiatives for wildlife.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.