{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T02:22:58Z","timestamp":1784773378828,"version":"3.55.0"},"reference-count":73,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2025,3,21]],"date-time":"2025-03-21T00:00:00Z","timestamp":1742515200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Recovery and Resilience Facility (RRF)","award":["RRF-2.3.1-21-2022-00001"],"award-info":[{"award-number":["RRF-2.3.1-21-2022-00001"]}]},{"name":"Recovery and Resilience Facility (RRF)","award":["RRF-2.3.1-21"],"award-info":[{"award-number":["RRF-2.3.1-21"]}]},{"name":"National Recovery Fund budget estimate","award":["RRF-2.3.1-21-2022-00001"],"award-info":[{"award-number":["RRF-2.3.1-21-2022-00001"]}]},{"name":"National Recovery Fund budget estimate","award":["RRF-2.3.1-21"],"award-info":[{"award-number":["RRF-2.3.1-21"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Antibiotics"],"abstract":"<jats:p>Background: Antimicrobial resistance (AMR) has become a serious global challenge in the 21st century. Poultry, including turkeys, are a vital source of animal-derived protein worldwide. Commensal bacterial strains in poultry can act as reservoirs for AMR, making monitoring them crucial for both veterinary and public health. Enterococcus species are emerging pathogens, particularly in severe nosocomial infections. Methods: This study aimed to assess the resistance profiles of commensal Enterococcus strains isolated (n = 470) from large-scale turkey flocks in Hungary. From each animal, two swab samples were collected: one from the oropharyngeal region near the tracheal entrance and one from the cloaca. The samples were subsequently processed, and the minimum inhibitory concentration (MIC) was determined following the Clinical and Laboratory Standards Institute (CLSI) guidelines. The tested antibiotics included amoxicillin, amoxicillin\u2013clavulanic acid, imipenem, neomycin, doxycycline, florfenicol, tylosin, enrofloxacin, potentiated sulfonamide, vancomycin, ceftriaxone, spectinomycin, tiamulin, lincomycin, and colistin. The dilution range for MIC determination was set between 512 and 0.001 \u00b5g\/mL. Results: Resistance to amoxicillin, a first-line treatment for Enterococcus infections, was low (11.1%). However, high resistance levels were observed for tylosin (62.6%), florfenicol (51.1%), doxycycline (48.7%), and enrofloxacin (45.5%). Notably, vancomycin resistance reached 15.5%, a finding consistent with global trends. Compared to human-derived Enterococcus data, resistance to aminopenicillins was significantly lower in turkey isolates, while neomycin resistance levels were comparable to those observed in human E. faecalis strains. Conclusions: The findings underscore the necessity of continuous surveillance of AMR trends in poultry production. While amoxicillin remains an effective treatment, the presence of multidrug-resistant strains and vancomycin-resistant isolates raises concerns regarding the potential dissemination of resistance genes. Future studies should incorporate next-generation sequencing to elucidate the genetic mechanisms underlying resistance. Additionally, integrating antibiotic usage data from farms may provide further insights into resistance dynamics. Strengthening antibiotic stewardship programs and fostering collaboration between veterinary and human medicine are crucial steps in addressing AMR under the One Health framework.<\/jats:p>","DOI":"10.3390\/antibiotics14040331","type":"journal-article","created":{"date-parts":[[2025,3,21]],"date-time":"2025-03-21T04:58:38Z","timestamp":1742533118000},"page":"331","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Antimicrobial Susceptibility Profiles of Commensal Enterococcus spp. Isolates from Turkeys in Hungarian Poultry Farms Between 2022 and 2023"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7837-2459","authenticated-orcid":false,"given":"\u00c1d\u00e1m","family":"Kerek","sequence":"first","affiliation":[{"name":"Department of Pharmacology and Toxicology, University of Veterinary Medicine, Istv\u00e1n utca 2, H-1078 Budapest, Hungary"},{"name":"National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine, Istv\u00e1n utca 2, H-1078 Budapest, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"\u00c1bel","family":"Szab\u00f3","sequence":"additional","affiliation":[{"name":"Department of Pharmacology and Toxicology, University of Veterinary Medicine, Istv\u00e1n utca 2, H-1078 Budapest, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Franciska","family":"Barn\u00e1cz","sequence":"additional","affiliation":[{"name":"Department of Pharmacology and Toxicology, University of Veterinary Medicine, Istv\u00e1n utca 2, H-1078 Budapest, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bence","family":"Csirmaz","sequence":"additional","affiliation":[{"name":"Department of Pharmacology and Toxicology, University of Veterinary Medicine, Istv\u00e1n utca 2, H-1078 Budapest, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-9281-2543","authenticated-orcid":false,"given":"L\u00e1szl\u00f3","family":"Kov\u00e1cs","sequence":"additional","affiliation":[{"name":"National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine, Istv\u00e1n utca 2, H-1078 Budapest, Hungary"},{"name":"Department of Animal Hygiene, Herd Health and Mobile Clinic, University of Veterinary Medicine, Istv\u00e1n utca 2, H-1078 Budapest, Hungary"},{"name":"Poultry-Care Kft., Lehel \u00fat 21, H-5052 \u00dajsz\u00e1sz, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3380-0827","authenticated-orcid":false,"given":"\u00c1kos","family":"Jerzsele","sequence":"additional","affiliation":[{"name":"Department of Pharmacology and Toxicology, University of Veterinary Medicine, Istv\u00e1n utca 2, H-1078 Budapest, Hungary"},{"name":"National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, University of Veterinary Medicine, Istv\u00e1n utca 2, H-1078 Budapest, Hungary"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,3,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"European Food Safety Authority (EFSA), and European Centre for Disease Prevention and Control (ECDC) (2023). 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