Evolution and Spread of Drug-Resistant Pathogens

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Antimicrobial Agents and Resistance".

Deadline for manuscript submissions: 19 December 2025 | Viewed by 440

Special Issue Editors


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Guest Editor
Laboratório de Medicina Aviária, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil
Interests: epidemiology and mechanisms of antimicrobial resistance

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Guest Editor Assistant
Laboratorio de Microbiología Hospitalaria y de la Comunidad, Centro de Investigaciones en Ciencias Microbiologicas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
Interests: carbapenems; microbial sensitivity tests; Pseudomonas aeruginosa

Special Issue Information

Dear Colleagues,

Over the past decades, the evolution of resistant pathogens has intensified alarmingly, driven by the excessive and inappropriate use of antimicrobials in human medicine, animal production, and agriculture. This scenario has favored the emergence of so-called “superbugs” — microorganisms capable of resisting multiple classes of antibiotics, including those considered last-resort treatments, such as carbapenems and colistin. These pathogens adapt rapidly through mechanisms like genetic mutations and horizontal gene transfer, enabling resistance traits to spread across species and environments.

The transcontinental spread of these resistant organisms has become a critical concern for global public health. International travel, food trade, and the movement of animals and people contribute to the dissemination of resistance genes across countries and continents, making it increasingly difficult to contain outbreaks and implement effective control measures. In this context, surveillance, monitoring, and research are essential tools. The One Health approach is fundamental in addressing this complex issue.

The aim of this Special Issue of Microorganisms, entitled "Evolution and Spread of Drug-Resistant Pathogens", is to present a collection of articles that provide an up-to-date and comprehensive overview of scientific advances related to antimicrobial resistance. In this Special Issue, original research articles and reviews are welcome. Manuscripts covering all aspects of the evolution and dissemination of resistant pathogens are welcome, including molecular mechanisms of resistance, epidemiological surveillance, public health impacts, prevention and control strategies, and innovative approaches to diagnosis, treatment, and antimicrobial stewardship. Submissions focusing on One Health perspectives that integrate human, animal, and environmental health are especially encouraged.

I look forward to receiving your contributions,

Prof. Dr. Marcos Paulo Vieira Cunha
Guest Editor

Dr. Elena Bello-López
Guest Editor Assistant

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Keywords

  • antimicrobial resistance (AMR)
  • food-borne pathogens
  • superbugs
  • one health
  • horizontal gene transfer
  • mobile genetic elements (MGEs)
  • surveillance and monitoring
  • resistant pathogens outbreaks
  • resistance mechanisms

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Published Papers (1 paper)

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Research

19 pages, 2657 KiB  
Article
Molecular Surveillance of ESBL and Carbapenemase Genes in Gram-Negative Bacterial Pathogens Isolated from Various Clinical Samples Collected from Northern Region of United Arab Emirates
by Premalatha Ragupathi, Vaneezeh Khamisani, Aisha Fadila Sadiq, Mariam Aliyu Mobiddo, Nasir Parwaiz, Sovan Bagchi and Nazeerullah Rahamathullah
Microorganisms 2025, 13(8), 1880; https://doi.org/10.3390/microorganisms13081880 - 12 Aug 2025
Viewed by 328
Abstract
The aim of this study was to explore the prevalence of ESBL and carbapenemase genes in Gram-negative bacteria isolated from various clinical samples collected from northern regions of UAE. In total 3670 clinical samples were obtained from patients attending various hospitals and clinics [...] Read more.
The aim of this study was to explore the prevalence of ESBL and carbapenemase genes in Gram-negative bacteria isolated from various clinical samples collected from northern regions of UAE. In total 3670 clinical samples were obtained from patients attending various hospitals and clinics in the northern regions of the UAE. All the samples underwent routine bacterial culture examination, and their antibiotic sensitivity patterns mainly on beta-lactam and carbapenem resistance in Gram-negative bacteria. Molecular detection of ESBL and carbapenemase genes (blaCTX-M, blaTEM, blaSHV, blaNDM, blaIMP, and blaOXA-48) was performed on them. A total of 249 MDR Gram-negative bacteria (E. coli, K. pneumoniae, P. aeruginosa, P. mirabilis and A. baumannii) were isolated. The genes blaCTX-M, blaTEM, and blaSHV were detected in all the MDR isolates. Among them, the blaCTX-M was predominant especially in E. coli. The blaNDM and blaIMP were detected in a few K. pneumoniae and A. baumannii. The genes combination blaCTX-M+TEM and blaCTX-M+SHV, blaCTX-M+SHV, blaTEM+SHV, and blaTEM+NDM were detected mostly in K. pneumoniae and E. coli, and few A. baumannii. The gene combination blaCTX-M+TEM+SHV and blaCTX-M+TEM+SHV+IMP were also detected in few E. coli, P. aeruginosa, and A. baumannii. The current findings highlight the importance of molecular detection of ESBL and carbapenemase genes to emphasize monitoring and controlling the development of MDR bacterial pathogens. Full article
(This article belongs to the Special Issue Evolution and Spread of Drug-Resistant Pathogens)
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