Evidence map›Paper›PMID 25636375›Full record

ArticleBMC veterinary research2015

Prevalence and genetic characteristics of Salmonella in free-living birds in Poland.

Marta Krawiec, Maciej Kuczkowski, Andrzej Grzegorz Kruszewicz, Alina Wieliczko

Abstract read
In one paragraph

Article in BMC veterinary research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Genomic Evidence of Multidrug-ResistantbioRxiv : the preprint server for biology · 2026
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  4. Prevalence and Antimicrobial Resistance ofAntibiotics (Basel, Switzerland) · 2025
    Review
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  7. Article
  8. Article
  9. Multidrug-resistant non-typhoidalFrontiers in microbiology · 2023
    Article
  10. Genotypic and Phenotypic Characterization of PathogenicInternational journal of environmental research and public health · 2022
    Article
  11. Molecular Characterization ofAnimals : an open access journal from MDPI · 2022
    Article
  12. Article
  13. Article
  14. The Prevalence ofAnimals : an open access journal from MDPI · 2020
    Article
  15. MiSeq Sequencing of Salmonella enterica subsp.Microbiology resource announcements · 2020
    Article
  16. BioMed research international · 2020
    Article
  17. Article
  18. Article
  19. Article
  20. A review ofVeterinary world · 2019
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Marta KrawiecDepartment of Epizootiology and Clinic of Bird and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Pl. Grunwaldzki 45, 50-366, Wrocław, Poland. martawet84@gmail.com.
Maciej KuczkowskiDepartment of Epizootiology and Clinic of Bird and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Pl. Grunwaldzki 45, 50-366, Wrocław, Poland. maciej.kuczkowski@up.wroc.pl.
Andrzej Grzegorz KruszewiczWarsaw Zoological Garden, ul. Ratuszowa 1/3, 03-461, Warsaw, Poland. andrzej.kruszewicz@zoo.waw.pl.
Alina WieliczkoDepartment of Epizootiology and Clinic of Bird and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, Pl. Grunwaldzki 45, 50-366, Wrocław, Poland. alina.wieliczko@up.wroc.pl.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSalmonella species are widespread in the environment, and occur in cattle, pigs, and birds, including poultry and free-living birds. In this study, we determined the occurrence of Salmonella in different wild bird species in Poland, focusing on five Salmonella serovars monitored in poultry by the European Union: Salmonella serovars Enteritidis, Typhimurium, Infantis, Virchow, and Hadar. We characterized their phenotypic and genetic variations. Isolates were classified into species and subspecies of the genus Salmonella with a polymerase chain reaction (PCR) assay. The prevalence of selected virulence genes (spvB, spiA, pagC, cdtB, msgA, invA, sipB, prgA, spaN, orgA, tolC, ironN, sitC, ipfC, sifA, sopB, and pefA) among the isolated strains was determined. We categorized all the Salmonella ser. Typhimurium strains with enterobacterial repetitive intergenic consensus (ERIC)-PCR.

resultsSixty-four Salmonella isolates were collected from 235 cloacal swabs, 699 fecal samples, and 66 tissue samples (6.4% of 1000 samples) taken from 40 different species of wild birds in Poland between September 2011 and August 2013. The largest numbers of isolates were collected from Eurasian siskin and greenfinch: 33.3% positive samples for both. The collected strains belonged to one of three Salmonella subspecies: enterica (81.25%), salamae (17.19%), or houtenae (1.56%). Eighteen strains belonged to Salmonella ser. Typhimurium (28.13%), one to ser. Infantis (1.56%), one to ser. Virchow (1.56%), and one to ser. Hadar (1.56%). All isolates contained spiA, msgA, invA, lpfC, and sifA genes; 94.45% of isolates also contained sitC and sopB genes. None of the Salmonella ser. Typhimurium strains contained the cdtB gene. The one Salmonella ser. Hadar strain contained all the tested genes, except spvB and pefA; the one Salmonella ser. Infantis strain contained all the tested genes, except tspvB, pefA, and cdtB; and the one Salmonella ser. Virchow strain contained all the tested genes, except spvB, pefA, cdtB, and tolC. The Salmonella ser. Typhimurium strains varied across the same host species, but similarity was observed among strains isolated from the same environment (e.g., the same bird feeder or the same lake).

conclusionsOur results confirm that some wild avian species are reservoirs for Salmonella serotypes, especially Salmonella ser. Typhimurium.

Indexed as

AnimalsAnimals, WildBird DiseasesBirdsDucksMultiplex Polymerase Chain ReactionPolandSalmonellaSalmonella enteritidisSalmonella Infections, AnimalSalmonella typhimuriumSerotypingVirulence FactorsVirulence Factors

Identifiers

PMID25636375
PMCPMC4316766

What OpenQuestion holds

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Registered trials

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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.