is an important opportunistic pathogen widely studied in relation to human infection and colonization. However, there is a lack of knowledge regarding other niches that may inhabit. isolated from healthy broiler and turkey flocks in Norway in 2018 have previously been described with regard to population structure, sequence types (STs), and the presence of virulence- and antimicrobial resistance (AMR) genes. In the present study we aimed to evaluate the dynamics of the population in poultry over time, with regards to AMR and virulence, and with a special focus on persistence of STs. A total of 391 flocks sampled in 2020 were included in the present study, of which 271 were from broiler flocks and 120 from turkey flocks. Similar to findings from 2018, the occurrence of was significantly higher based on culturing in turkey flocks (62.5%) compared to broiler flocks (24.0%). Major STs in 2020 included ST5827 ( = 7), ST37 ( = 7), ST370 ( = 7), ST17 ( = 5), and ST4710 ( = 5). Several STs persisted over time in both host species, including ST35, ST37, ST590, and ST17. This persistence may be due to local re-circulation or reintroduction from parent flocks. Of these five major STs, only ST590 carried AMR genes, indicating that the persistence was not associated with the presence of AMR genes. An ST4710 strain with a hypervirulence-encoding plasmid (p4710; , ) was recovered from turkeys in 2018. The same strain was present in turkeys in 2020, but the plasmid had lost the salmochelin locus. This loss may be attributed to reductive evolution due to the presence of several siderophores within the same isolates. In this study we also characterized a clinical ST4710 isolate from a turkey with airsacculitis. The isolate was closely related to two intestinal ST4710 isolates from healthy turkeys in 2018. These three isolates were sampled within the same location and time frame in 2018, and all carried the full p4710 virulence plasmid. These findings highlight the transmission- and infectious potential of ST4710 in turkeys.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10232788 | PMC |
| http://dx.doi.org/10.3389/fmicb.2023.1193274 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Metabolic Profile of in Dwyer's Media with and Without Rice Starch.
Metabolites
November 2024
Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA.
Background And Objectives: , the causative agent of histomonosis (i.e., blackhead disease), threatens the poultry industry with serious economic losses due to its high mortality and morbidity in turkey and chicken flocks.
View Article and Find Full Text PDFDetection and Whole-Genome Analysis of tigecycline resistant Escherichia coli in poultry and meat samples in Türkiye.
Poult Sci
December 2024
Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu Province, PR China. Electronic address:
Article Synopsis
- The study examines the presence of tigecycline resistant Enterobacterales (TRE) in the gut of healthy birds and in meat samples, revealing a significant prevalence in poultry.
- Out of 960 samples, 19.21% from chicken farms and 13.3% from turkey farms tested positive for TRE, with specific strains of E. coli identified carrying the tet(X4) gene, indicating multi-drug resistance.
- Findings suggest that food-producing animals could be a source of TRE for humans, highlighting the need for active surveillance to mitigate public health risks related to these resistant bacteria.
The correlation between on-farm biosecurity and animal welfare indices in large-scale turkey production.
Poult Sci
November 2024
Department of Animal Hygiene, Herd Health and Mobile Clinic, University of Veterinary Medicine, 1078 Budapest, Hungary.
This research aimed to determine the association between biosecurity and animal welfare measures in large-scale fattening turkey farms in Hungary. Large-scale farms raising male fattening turkeys across Hungary were contacted, with 24 agreeing to participate. The Biocheck.
View Article and Find Full Text PDFEstimating the time of Highly Pathogenic Avian Influenza virus introduction into United States poultry flocks during the 2022/24 epizootic.
PLoS One
December 2024
Secure Food Systems Team, University of Minnesota, Saint Paul, Minnesota, United States of America.
Following confirmation of the first case of the ongoing U.S. HPAI H5N1 epizootic in commercial poultry on February 8, 2022, the virus has continued to devastate the U.
View Article and Find Full Text PDFAvian reovirus infection in turkeys with neurological disease in Alberta.
Can Vet J
December 2024
Diagnostic Services Unit, Faculty of Veterinary Medicine, University of Calgary, 11877 85th Street NW, Calgary, Alberta T3R 1J3 (Gupta, Zachar); Prairie Livestock Veterinarians, #1 4940 81st Street, Red Deer, Alberta T4P 3V3 (Bowling, Girard); Animal Health Laboratory, University of Guelph, 50 Stone Road East, Guelph, Ontario N1G 2W1 (Ojkic).
Avian reoviruses (ARVs) are ubiquitous and play a role in diseases affecting various organs in chickens and turkeys. In recent years, tenosynovitis and lameness emerged as the most frequently reported clinical conditions. In this report, we describe a case of neurological disease associated with ARV infection in 4-week-old turkeys in Alberta.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!