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Pseudomonas aeruginosa , a ubiquitous opportunistic pathogen considered one of the paradigms of antimicrobial resistance, is among the main causes of hospital-acquired and chronic infections associated with significant morbidity and mortality. This growing threat results from the extraordinary capacity of P. aeruginosa to develop antimicrobial resistance through chromosomal mutations, the increasing prevalence of transferable resistance determinants (such as the carbapenemases and the extended-spectrum β-lactamases), and the global expansion of epidemic lineages. The general objective of this initiative is to provide a comprehensive update of P. aeruginosa resistance mechanisms, especially for the extensively drug-resistant (XDR)/difficult-to-treat resistance (DTR) international high-risk epidemic lineages, and how the recently approved β-lactams and β-lactam/β-lactamase inhibitor combinations may affect resistance mechanisms and the definition of susceptibility profiles. To address this challenge, the European Study Group for Antimicrobial Resistance Surveillance (ESGARS) from the European Society of Clinical Microbiology and Infectious Diseases launched the 'Improving Surveillance of Antibiotic-Resistant Pseudomonas aeruginosa in Europe (ISARPAE)' initiative in 2022, supported by the Joint programming initiative on antimicrobial resistance network call and included a panel of over 40 researchers from 18 European Countries. Thus, a ESGARS-ISARPAE position paper was designed and the final version agreed after four rounds of revision and discussion by all panel members. To provide an update on (a) the emerging resistance mechanisms to classical and novel anti-pseudomonal agents, with a particular focus on β-lactams, (b) the susceptibility profiles associated with the most relevant β-lactam resistance mechanisms, (c) the impact of the novel agents and resistance mechanisms on the definitions of resistance profiles, and (d) the globally expanding XDR/DTR high-risk lineages and their association with transferable resistance mechanisms. The evidence presented herein can be used for coordinated epidemiological surveillance and decision making at the European and global level. [ABSTRACT FROM AUTHOR]

The importance of defining and establishing professional standards for Clinical Microbiology (CM) in Europe has long been highlighted, starting with the development of a European curriculum. The first European Curriculum in Medical Microbiology (MM) was adopted by the European Union of Medical Specialists (UEMS) council in 2017. This paper assesses how training programmes in CM in Europe align with the European curriculum, just under 5 years after its introduction, and reviews what methods of assessment are in use to assess the CM trainees' progress during training programmes. Using an internet-based platform, a questionnaire was circulated to the full, associate and observer members of the UEMS MM section. Information collected related to the structure, content and delivery of CM training in the participating countries, as well as methods of assessment used to evaluate training progress. Twenty-one countries responded, from a total of 30 countries invited to participate. All had a structured CM training programme, with a curriculum, dedicated trainers and a record of training activities. Fifteen countries require trainees to pass an exit examination, and over 60% of countries participate in continuous workplace-based assessment. Of the participating countries, 57% meet the European Training Requirements recommendation that duration of specialist training is 60 months. Regarding core competencies, all trainees gain experience in laboratory skills and infection prevention and control, but the emphasis on clinical management and antimicrobial stewardship is more varied across countries. The UEMS MM curriculum has been largely adopted by 21 countries within less than 5 years of ratification, which speaks optimistically to a future of standardized quality training across Europe. The introduction of a pilot European Examination in Clinical Microbiology in 2021 is the start of a pan-European assessment of the success of the implementation of this curriculum and the first step in quality assurance for CM training in Europe. [ABSTRACT FROM AUTHOR]