Antimicrobial Susceptibility Profiles of <i>Erysipelothrix rhusiopathiae</i> and <i>Riemerella anatipestifer</i> Isolates from Clinical Cases of Waterfowl in Hungary Between 2022 and 2023
<b>Background:</b><i>Riemerella anatipestifer</i> and <i>Erysipelothrix rhusiopathiae</i> remain clinically significant pathogens in the waterfowl industry, causing substantial economic losses and posing potential zoonotic risks. Antimicrobial resistance (AMR) con...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-05-01
|
| Series: | Antibiotics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-6382/14/5/478 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849327566738948096 |
|---|---|
| author | Ádám Kerek Ábel Szabó Ákos Jerzsele |
| author_facet | Ádám Kerek Ábel Szabó Ákos Jerzsele |
| author_sort | Ádám Kerek |
| collection | DOAJ |
| description | <b>Background:</b><i>Riemerella anatipestifer</i> and <i>Erysipelothrix rhusiopathiae</i> remain clinically significant pathogens in the waterfowl industry, causing substantial economic losses and posing potential zoonotic risks. Antimicrobial resistance (AMR) continues to spread in the poultry sector, making regular surveillance of bacterial isolates essential. <b>Methods</b>: In this study, eight <i>R. anatipestifer</i> and eighteen <i>E. rhusiopathiae</i> strains were isolated from clinical cases in Hungarian waterfowl between 2022 and 2023. Minimum inhibitory concentration (MIC) values were determined for antibiotics of veterinary and public health significance. <b>Results</b>: For <i>R. anatipestifer</i>, high resistance rates were observed for spectinomycin, lincomycin, and tiamulin, while beta-lactam antibiotics (amoxicillin, ceftriaxone, and imipenem) demonstrated strong efficacy. Among the <i>E. rhusiopathiae</i> isolates, resistance to amoxicillin (89%) and enrofloxacin (61%) was notable, whereas ceftriaxone and doxycycline exhibited moderate antibacterial effects. <b>Conclusions</b>: Our findings underscore the importance of targeted antimicrobial use in the waterfowl industry. Beta-lactam antibiotics remain effective, whereas rising resistance to fluoroquinolones and aminoglycosides raise serious concerns. Routine AMR surveillance and the adoption of alternative strategies are crucial for controlling infections and maintaining flock health. |
| format | Article |
| id | doaj-art-a3e30747e0004aa08062a5fece9b4d13 |
| institution | Kabale University |
| issn | 2079-6382 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Antibiotics |
| spelling | doaj-art-a3e30747e0004aa08062a5fece9b4d132025-08-20T03:47:49ZengMDPI AGAntibiotics2079-63822025-05-0114547810.3390/antibiotics14050478Antimicrobial Susceptibility Profiles of <i>Erysipelothrix rhusiopathiae</i> and <i>Riemerella anatipestifer</i> Isolates from Clinical Cases of Waterfowl in Hungary Between 2022 and 2023Ádám Kerek0Ábel Szabó1Ákos Jerzsele2Department of Pharmacology and Toxicology, University of Veterinary Medicine, István utca 2, 1078 Budapest, HungaryDepartment of Pharmacology and Toxicology, University of Veterinary Medicine, István utca 2, 1078 Budapest, HungaryDepartment of Pharmacology and Toxicology, University of Veterinary Medicine, István utca 2, 1078 Budapest, Hungary<b>Background:</b><i>Riemerella anatipestifer</i> and <i>Erysipelothrix rhusiopathiae</i> remain clinically significant pathogens in the waterfowl industry, causing substantial economic losses and posing potential zoonotic risks. Antimicrobial resistance (AMR) continues to spread in the poultry sector, making regular surveillance of bacterial isolates essential. <b>Methods</b>: In this study, eight <i>R. anatipestifer</i> and eighteen <i>E. rhusiopathiae</i> strains were isolated from clinical cases in Hungarian waterfowl between 2022 and 2023. Minimum inhibitory concentration (MIC) values were determined for antibiotics of veterinary and public health significance. <b>Results</b>: For <i>R. anatipestifer</i>, high resistance rates were observed for spectinomycin, lincomycin, and tiamulin, while beta-lactam antibiotics (amoxicillin, ceftriaxone, and imipenem) demonstrated strong efficacy. Among the <i>E. rhusiopathiae</i> isolates, resistance to amoxicillin (89%) and enrofloxacin (61%) was notable, whereas ceftriaxone and doxycycline exhibited moderate antibacterial effects. <b>Conclusions</b>: Our findings underscore the importance of targeted antimicrobial use in the waterfowl industry. Beta-lactam antibiotics remain effective, whereas rising resistance to fluoroquinolones and aminoglycosides raise serious concerns. Routine AMR surveillance and the adoption of alternative strategies are crucial for controlling infections and maintaining flock health.https://www.mdpi.com/2079-6382/14/5/478<i>Erysipelothrix rhusiopathiae</i><i>Riemerella anatipestifer</i>antimicrobial resistanceAMRminimum inhibitory concentrationMIC |
| spellingShingle | Ádám Kerek Ábel Szabó Ákos Jerzsele Antimicrobial Susceptibility Profiles of <i>Erysipelothrix rhusiopathiae</i> and <i>Riemerella anatipestifer</i> Isolates from Clinical Cases of Waterfowl in Hungary Between 2022 and 2023 Antibiotics <i>Erysipelothrix rhusiopathiae</i> <i>Riemerella anatipestifer</i> antimicrobial resistance AMR minimum inhibitory concentration MIC |
| title | Antimicrobial Susceptibility Profiles of <i>Erysipelothrix rhusiopathiae</i> and <i>Riemerella anatipestifer</i> Isolates from Clinical Cases of Waterfowl in Hungary Between 2022 and 2023 |
| title_full | Antimicrobial Susceptibility Profiles of <i>Erysipelothrix rhusiopathiae</i> and <i>Riemerella anatipestifer</i> Isolates from Clinical Cases of Waterfowl in Hungary Between 2022 and 2023 |
| title_fullStr | Antimicrobial Susceptibility Profiles of <i>Erysipelothrix rhusiopathiae</i> and <i>Riemerella anatipestifer</i> Isolates from Clinical Cases of Waterfowl in Hungary Between 2022 and 2023 |
| title_full_unstemmed | Antimicrobial Susceptibility Profiles of <i>Erysipelothrix rhusiopathiae</i> and <i>Riemerella anatipestifer</i> Isolates from Clinical Cases of Waterfowl in Hungary Between 2022 and 2023 |
| title_short | Antimicrobial Susceptibility Profiles of <i>Erysipelothrix rhusiopathiae</i> and <i>Riemerella anatipestifer</i> Isolates from Clinical Cases of Waterfowl in Hungary Between 2022 and 2023 |
| title_sort | antimicrobial susceptibility profiles of i erysipelothrix rhusiopathiae i and i riemerella anatipestifer i isolates from clinical cases of waterfowl in hungary between 2022 and 2023 |
| topic | <i>Erysipelothrix rhusiopathiae</i> <i>Riemerella anatipestifer</i> antimicrobial resistance AMR minimum inhibitory concentration MIC |
| url | https://www.mdpi.com/2079-6382/14/5/478 |
| work_keys_str_mv | AT adamkerek antimicrobialsusceptibilityprofilesofierysipelothrixrhusiopathiaeiandiriemerellaanatipestiferiisolatesfromclinicalcasesofwaterfowlinhungarybetween2022and2023 AT abelszabo antimicrobialsusceptibilityprofilesofierysipelothrixrhusiopathiaeiandiriemerellaanatipestiferiisolatesfromclinicalcasesofwaterfowlinhungarybetween2022and2023 AT akosjerzsele antimicrobialsusceptibilityprofilesofierysipelothrixrhusiopathiaeiandiriemerellaanatipestiferiisolatesfromclinicalcasesofwaterfowlinhungarybetween2022and2023 |