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Antibiotics
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Bacteria Isolated from Animals: Virulence, Characterization and Antimicrobial Resistance, 2nd...
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Bacteria Isolated from Animals: Virulence, Characterization and Antimicrobial Resistance, 2nd Edition

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

Deadline for manuscript submissions: closed (30 June 2024) | Viewed by 7657

Special Issue Editors

Prof. Dr. Renata Urban-Chmiel

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Guest Editor
Department of Veterinary Prevention and Avian Disease, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka 12, 20-033 Lublin, Poland
Interests: veterinary; bacteriology; food-borne pathogens; antibiotic resistance; bacteriophages; infectious diseases; ruminats diseases
Special Issues, Collections and Topics in MDPI journals
Dr. Marta Dec

E-Mail Website
Guest Editor
Department of Veterinary Prevention and Avian Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-033 Lublin, Poland
Interests: veterinary microbiology; bacteriology; antimicrobial susceptibility; probiotics
Special Issues, Collections and Topics in MDPI journals
Dr. Dagmara Stępień-Pyśniak

E-Mail Website
Guest Editor
Department of Veterinary Prevention and Avian Diseases, Faculty of Veterinary Medicine, University of Life Sciences, Głęboka 30, 20-612 Lublin, Poland
Interests: avian diseases; birds microbiology; opportunistic pathogen; diagnostics; mechanisms of resistance; spread of resistance; virulence factors
Special Issues, Collections and Topics in MDPI journals
Dr. Agnieszka Marek

E-Mail Website
Guest Editor
Department of Veterinary Prevention and Avian Diseases, Faculty of Veterinary Medicine, University of Life Sciences, Głęboka 30, 20-612 Lublin, Poland
Interests: avian diseases; infectious diseases; veterinary microbiology; antibiotic susceptibility of pathogenic and nonpathogenic bacteria; mechanisms of resistance; virulence genes
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Prof. Dr. Kinga Wieczorek

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Guest Editor
Department of Hygiene of Food of Animal Origin, National Veterinary Research Institute, Partyzantow 57, 24-100 Pulawy, Poland
Interests: bacteriology; food-borne pathogens; antimicrobial resistance; molecular biology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The first volume of the Special Issue titled "Bacteria Isolated from Animals: Virulence, Characterization and Antimicrobial Resistance" was recently released. As the topic is still relevant in terms of both animal and human health, its exploration will be continued in the second volume. Antimicrobial use in animals contributes to the emergence of resistant strains of bacteria that can be transferred to humans through the food chain or direct contact. Of particular concern are multidrug-resistant strains of pathogenic bacteria called "Superbugs", which pose a global threat by causing infections that are difficult to treat and even lead to death. Monitoring the occurrence of resistant bacterial strains, especially pathogenic ones, combined with explaining the mechanisms of resistance is the basis for developing recommendations for infection control and rationalizing the use of antimicrobial substances in animal husbandry. These tasks are part of the European One Health Action Plan against antimicrobial resistance (COM/2017/0339).

We welcome studies on the comprehensive phenotypic and genotypic characterization of bacteria from livestock, companion and wild animals, as well as from food of animal origin, with a special focus on zoonotic pathogens. Researchers are encouraged to publish studies on the drug susceptibility of bacteria and their mechanisms of resistance and virulence, as well as studies on alternative methods of controlling bacterial infections in animals. We also accept studies on the antibiotic susceptibility of non-pathogenic bacteria inhabiting the mucous membranes of animals or food of animal origin. Such bacteria, while not causing infection, maybe a reservoir of resistance genes that can be transferred to other members of the microbiota, including opportunistic and pathogenic bacteria.

Prof. Dr. Renata Urban-Chmiel
Dr. Marta Dec
Dr. Dagmara Stępień-Pyśniak
Dr. Agnieszka Marek
Prof. Dr. Kinga Wieczorek
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

  • bacteria
  • antimicrobial resistance
  • virulence
  • infections
  • animals

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Published Papers (4 papers)

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Research

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17 pages, 1208 KiB  
Article
Evolution of the Antibiotic Resistance Levels, Multi-Resistance Patterns, and Presence of Antibiotic Resistance Genes in E. coli Isolates from the Feces of Breeding Hens during the Rearing Period
by Alejandro Fenollar-Penadés, Pablo Catalá-Gregori, Vicente Tallá-Ferrer, María Ángeles Castillo, Miguel García-Ferrús and Ana Jiménez-Belenguer
Antibiotics 2024, 13(8), 753; https://doi.org/10.3390/antibiotics13080753 - 10 Aug 2024
Cited by 1 | Viewed by 847
Abstract
The food chain acts as an entry point for antibiotic resistance to reach humans and environment. Because of the importance of the poultry sector, we investigated the prevalence and evolution of antibiotic resistance in Escherichia coli isolates from a series of 14,500 breeding [...] Read more.
The food chain acts as an entry point for antibiotic resistance to reach humans and environment. Because of the importance of the poultry sector, we investigated the prevalence and evolution of antibiotic resistance in Escherichia coli isolates from a series of 14,500 breeding hens and their farm environment during the rearing period. Samples included meconium from one-day-old breeders and fecal samples and boot swabs from the breeding sheds of pullets and adult hens. All E. coli isolates from one-day-old chicks, 77% from feces and 61% from boot swabs, were resistant to at least one antibiotic. Cefotaxime and multi-drug resistance in fecal isolates decreased during the rearing period from 41.2% and 80.8% in one-day-old chicks to 3.8% and 33.8% in adults. All genes studied were detected in E. coli from feces and boot swabs, the most common being blaTEM (75%), blaSHV (72%), and qnrB (67%). blaCMY-2 was detected in 100% of one-day-old breeders. The combination of at least one cephalosporin and one quinolone resistance gene was detected in 68.7% of fecal and boot swab isolates. Our results highlight the need to monitor the prevalence of antibiotic resistance on farms and to take appropriate measures to reduce the risk to public and environmental health. Full article
(This article belongs to the Special Issue Bacteria Isolated from Animals: Virulence, Characterization and Antimicrobial Resistance, 2nd Edition)
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13 pages, 692 KiB  
Article
Characterization of Riemerella anatipestifer Strains Isolated from Various Poultry Species in Poland
by Anna Nowaczek, Marta Dec, Dagmara Stępień-Pyśniak, Jarosław Wilczyński and Renata Urban-Chmiel
Antibiotics 2023, 12(12), 1648; https://doi.org/10.3390/antibiotics12121648 - 22 Nov 2023
Cited by 2 | Viewed by 1829
Abstract
Riemerella anatipestifer (R. anatipestifer) is one of the common pathogens found in poultry flocks, resulting in serious economic losses for the poultry industry due to high mortality, reduced growth rate, poor feed conversion, increased condemnations, and high treatment costs. The aim [...] Read more.
Riemerella anatipestifer (R. anatipestifer) is one of the common pathogens found in poultry flocks, resulting in serious economic losses for the poultry industry due to high mortality, reduced growth rate, poor feed conversion, increased condemnations, and high treatment costs. The aim of this study was to phenotypically characterize phylogenetic relationships and assess the presence of resistance gene strains of R. anatipestifer obtained from various poultry species in Poland. A total of 57 isolates of Riemerella were included in this study. A polymerase chain reaction (PCR) and matrix assisted laser desorption ionization mass spectrometry (MALDI-TOF MS) were used for identification of the strains. The phylogenetic relationship of the R. anatipestifer isolates was determined by analysing the rpoB gene sequence. The susceptibility to antibiotics was evaluated by minimum inhibitory concentration (MIC) in liquid media. All of the field strains of R. anatipestifer were grouped into one of two clades resulting from rpoB gene sequencing. High MIC50 and MIC90 values were obtained for gentamycin, amikacin, and colistin. Low MIC50 and MIC90 values were obtained for amoxicillin cefuroxime, cefoperazone, piperacillin, and trimethoprim/sulfamethoxazole. Among the resistance genes, tet(X) and ermF were identified most frequently. This is the first phenotypic characterization of R. anatipestifer strains obtained from poultry flocks in Poland. Full article
(This article belongs to the Special Issue Bacteria Isolated from Animals: Virulence, Characterization and Antimicrobial Resistance, 2nd Edition)
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14 pages, 1633 KiB  
Article
Whole-Genome Sequencing Analysis of Non-Typhoidal Salmonella Isolated from Breeder Poultry Farm Sources in China, 2020–2021
by Zijing Ju, Lulu Cui, Changwei Lei, Mengze Song, Xuan Chen, Ziwei Liao, Tiejun Zhang and Hongning Wang
Antibiotics 2023, 12(11), 1642; https://doi.org/10.3390/antibiotics12111642 - 19 Nov 2023
Cited by 2 | Viewed by 1908
Abstract
Non-typhoidal salmonellosis is a dangerous foodborne disease that causes enormous economic loss and threatens public health worldwide. The consumption of food, especially poultry or poultry products, contaminated with non-typhoidal Salmonella (NTS) is the main cause of human salmonellosis. To date, no research has [...] Read more.
Non-typhoidal salmonellosis is a dangerous foodborne disease that causes enormous economic loss and threatens public health worldwide. The consumption of food, especially poultry or poultry products, contaminated with non-typhoidal Salmonella (NTS) is the main cause of human salmonellosis. To date, no research has identified the molecular epidemiological characteristics of NTS strains isolated from breeder chicken farms in different provinces of China. In our study, we investigated the antimicrobial resistance, phylogenetic relationships, presence of antimicrobial resistance and virulence genes, and plasmids of NTS isolates recovered from breeder chicken farms in five provinces of China between 2020 and 2021 by using a whole-genome sequencing (WGS) approach and phenotypic methods. All sequenced isolates belonged to six serovars with seven sequence types. Nearly half of the isolates (44.87%) showed phenotypic resistance to at least three classes of antimicrobials. Salmonella enterica serotype Kentucky harbored more antimicrobial resistance genes than the others, which was highly consistent with phenotypic resistance. Furthermore, the carried rate of 104 out of 135 detected virulence genes was 100%. Overall, our WGS results highlight the need for the continuous monitoring of, and additional studies on, the antimicrobial resistance of NTS. Full article
(This article belongs to the Special Issue Bacteria Isolated from Animals: Virulence, Characterization and Antimicrobial Resistance, 2nd Edition)
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Review

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16 pages, 323 KiB  
Review
Yokenella regensburgei—Past, Present and Future
by Dan Alexandru Toc, Carmen Costache, Vlad Sever Neculicioiu, Irina-Maria Rusu, Bogdan-Valentin Roznovan, Alexandru Botan, Adelina Georgiana Toc, Pavel Șchiopu, Paul-Stefan Panaitescu, Adrian Gabriel Pană and Ioana Alina Colosi
Antibiotics 2024, 13(7), 589; https://doi.org/10.3390/antibiotics13070589 - 26 Jun 2024
Viewed by 2091
Abstract
Yokenella regensburgei is a Gram-negative rod part of the Enterobacteriaceae family (order Enterobacterales) and a rare cause of human infections. Although improved diagnostic methods have led to an increase in reports of this elusive pathogen, information remains limited. In order to provide [...] Read more.
Yokenella regensburgei is a Gram-negative rod part of the Enterobacteriaceae family (order Enterobacterales) and a rare cause of human infections. Although improved diagnostic methods have led to an increase in reports of this elusive pathogen, information remains limited. In order to provide a better understanding of this bacterium, we developed the first comprehensive review of its biology, biochemical profile, antimicrobial resistance pattern, virulence factors, natural reservoir and involvement in various veterinary and human infections. Human infections with this bacterium are scarcely reported, most probably due to constraints regarding its identification and biochemical similarities to Hafnia alvei. Multiple systematic searches revealed 23 cases of human infection, with a seemingly worldwide distribution, mostly in middle-aged or elderly male patients, often associated with immunosuppression. To date, Y. regensburgei has been reported in skin and soft tissue infections, bacteremia and sepsis, osteoarticular infections and in others such as urinary tract and digestive infections. The unique ability of Y. regensburgei to degrade polystyrene presents a novel and promising avenue for addressing plastic pollution in the near future. However, large-scale applications of this bacterium will undoubtedly increase human exposure, highlighting the necessity for comprehensive research into its role in human and veterinary infections, pathogenicity and antibiotic resistance. Full article
(This article belongs to the Special Issue Bacteria Isolated from Animals: Virulence, Characterization and Antimicrobial Resistance, 2nd Edition)
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