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Antibiotics
Special Issues
Antimicrobial Resistance and Virulence in Veterinary Pathogens
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Antimicrobial Resistance and Virulence in Veterinary Pathogens

A special issue of Antibiotics (ISSN 2079-6382). This special issue belongs to the section "Antibiotics in Animal Health".

Deadline for manuscript submissions: 20 September 2024 | Viewed by 2173

Special Issue Editors

Dr. Manuela Oliveira

E-Mail Website1 Website2
Guest Editor
Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, Universidade de Lisboa, Lisbon, Portugal
Interests: antimicrobial resistance; bacterial virulence; biofilms; genomics; infections pathogenesis; food safety
Special Issues, Collections and Topics in MDPI journals
Dr. Eva Cunha

E-Mail Website
Guest Editor
CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
Interests: antimicrobial resistance; bacterial virulence; biofilms, veterinary medicine and infectious diseases
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The worldwide emergence of antimicrobial-resistant bacteria, especially those that are resistant to last-resource antibiotics, is now a common problem affecting veterinary medicine. In this setting, the outcome of infectious diseases largely depends on a strain's resistance profile, as well as on the bacterial ability to express determinants of virulence. These characteristics are frequently linked, as on the one hand, antimicrobials administration may affect virulence gene expression and infection pathogenesis, but on the other hand, some virulence factors can be associated with an increased resistance capability, namely those strains with an ability to produce biofilms. In veterinary medicine, the prevention of infections depends on monitoring relevant resistant and virulent clones and associated mobile genetic elements, which is of major importance for decision making in terms of antimicrobial stewardship. This Special Issue aims to publish manuscripts that contribute to understanding the impact of bacterial antimicrobial resistance and virulence on veterinary medicine, and consequently, on One Health.

Dr. Manuela Oliveira
Dr. Eva Cunha
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Antibiotics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • agriculture
  • animal production
  • antimicrobial resistance
  • antimicrobial stewardship
  • aquaculture
  • epidemiology
  • genomics
  • infections pathogenesis
  • One Health
  • wildlife

Published Papers (2 papers)

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Research

14 pages, 5490 KiB  
Article
First Insights on Resistance and Virulence Potential of Escherichia coli from Captive Birds of Prey in Portugal
by Rita Magalhães, Raquel Abreu, Gonçalo Pereira, Eva Cunha, Elisabete Silva, Luís Tavares, Lélia Chambel and Manuela Oliveira
Antibiotics 2024, 13(5), 379; https://doi.org/10.3390/antibiotics13050379 - 23 Apr 2024
Viewed by 523
Abstract
Captive birds of prey are often used for pest control in urban areas, while also participating in falconry exhibitions. Traveling across the country, these birds may represent a public health concern as they can host pathogenic and zoonotic agents and share the same [...] Read more.
Captive birds of prey are often used for pest control in urban areas, while also participating in falconry exhibitions. Traveling across the country, these birds may represent a public health concern as they can host pathogenic and zoonotic agents and share the same environment as humans and synanthropic species. In this work, Escherichia coli from the cloacal samples of 27 captive birds of prey were characterized to determine their pathogenic potential. Isolates were clustered through ERIC-PCR fingerprinting, and the phylogenetic groups were assessed using a quadruplex PCR method. Their virulence and resistance profile against nine antibiotics were determined, as well as the isolates’ ability to produce extended-spectrum β-lactamases (ESBLs). The 84 original isolates were grouped into 33 clonal types, and it was observed that more than half of the studied isolates belonged to groups D and B2. Most isolates presented gelatinase activity (88%), almost half were able to produce biofilm (45%), and some were able to produce α-hemolysin (18%). The isolates presented high resistance rates towards piperacillin (42%), tetracycline (33%), and doxycycline (30%), and 6% of the isolates were able to produce ESBLs. The results confirm the importance of these birds as reservoirs of virulence and resistance determinants that can be disseminated between wildlife and humans, stressing the need for more studies focusing on these animals. Full article
(This article belongs to the Special Issue Antimicrobial Resistance and Virulence in Veterinary Pathogens)
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14 pages, 324 KiB  
Article
Surveys on Pet-Reptile-Associated Multi-Drug-Resistant Salmonella spp. in the Timișoara Metropolitan Region—Western Romania
by János Dégi, Viorel Herman, Isidora Radulov, Florica Morariu, Tiana Florea and Kálmán Imre
Antibiotics 2023, 12(7), 1203; https://doi.org/10.3390/antibiotics12071203 - 19 Jul 2023
Cited by 4 | Viewed by 1164
Abstract
The number of reptiles owned as pets has risen worldwide. Additionally, urban expansion has resulted in more significant human encroachment and interactions with the habitats of captive reptiles. Between May and October 2022, 48 reptiles from pet shops and 69 from households were [...] Read more.
The number of reptiles owned as pets has risen worldwide. Additionally, urban expansion has resulted in more significant human encroachment and interactions with the habitats of captive reptiles. Between May and October 2022, 48 reptiles from pet shops and 69 from households were sampled in the Timișoara metropolitan area (western Romania). Three different sample types were collected from each reptile: oral cavity, skin, and cloacal swabs. Salmonella identification was based on ISO 6579-1:2017 (Annex D), a molecular testing method (invA gene target), and strains were serotyped in accordance with the Kauffman–White–Le-Minor technique; the antibiotic susceptibility was assessed according to Decision 2013/652. This study showed that 43.28% of the pet reptiles examined from households and pet shops carried Salmonella spp. All of the strains isolated presented resistance to at least one antibiotic, and 79.32% (23/29) were multi-drug-resistant strains, with the most frequently observed resistances being to gentamicin, nitrofurantion, tobramycin, and trimethoprim–sulfamethoxazole. The findings of the study undertaken by our team reveal that reptile multi-drug-resistant Salmonella is present. Considering this aspect, the most effective way of preventing multi-drug-resistant Salmonella infections requires stringent hygiene control in reptile pet shops as well as ensuring proper animal handling once the animals leave the pet shop and are introduced into households. Full article
(This article belongs to the Special Issue Antimicrobial Resistance and Virulence in Veterinary Pathogens)
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