Antimicrobial resistance (AMR) surveillance of mycoplasmas of veterinary importance has been held back for years due to lack of harmonized methods for antimicrobial susceptibility testing (AST) and interpretative criteria, resulting in a crucial shortage of data. To address AMR in ruminant mycoplasmas, we mobilized a long-established clinical surveillance network called "Vigimyc." Here we describe our surveillance strategy and detail the results obtained during a 2-year monitoring period. We also assess how far our system complies with current guidelines on AMR surveillance and how it could serve to build epidemiological cut-off values (ECOFFs), as a first attainable criterion to help harmonize monitoring efforts and move forward to clinical breakpoints. Clinical surveillance through Vigimyc enables continuous collection, identification and preservation of spp. isolates along with metadata. The most frequent pathogens, i.e., and species belonging to group, show stable clinicoepidemiological trends and were included for annual AST. In the absence of interpretative criteria for ruminant mycoplasmas, we compared yearly minimum inhibitory concentration (MIC) results against reference datasets. We also ran a SWOT (Strengths, Weaknesses, Opportunities, Threats) analysis on the overall service provided by our AMR surveillance strategy. Results of the 2018-2019 surveillance campaign were consistent with the reference datasets, with isolates showing high MIC values for all antimicrobial classes except fluoroquinolones, and species of the group showing predominantly low MIC values. A few new AMR patterns were detected, such as with lower spectinomycin MICs. Our reference dataset partially complied with European Committee on Antimicrobial Susceptibility Testing (EUCAST) requirements, and we were able to propose tentative epidemiological cut-off values (TECOFFs) for with tilmicosin and spectinomycin and for group with tilmicosin and lincomycin. These TECOFFs were consistent with other published data and the clinical breakpoints of , which are often used as surrogates for mycoplasmas. SWOT analysis highlighted the benefit of pairing clinical and antimicrobial resistance surveillance despite the AST method-related gaps that remain. The international community should now direct efforts toward AST method harmonization and clinical interpretation.
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http://dx.doi.org/10.3389/fvets.2021.667175 | DOI Listing |
Int J Med Mushrooms
December 2024
Department of Biology, Faculty of Science, Mahasarakham University, Kantarawichai District, Maha Sarakham, Thailand; Microbiology and Applied Microbiology Research Unit, Faculty of Science, Mahasarakham University, Kantarawichai District, Maha Sarakham, Thailand.
Candida albicans has the potential to turn pathogenic and cause mild to severe infections, particularly in people with weakened immune systems. Novel therapeutics are required due to its morphological alterations, biofilm development, and resistance to antifungal drugs. Polycephalomyces nipponicus, a traditional East Asian medicinal fungus, has shown potential as an antifungal agent.
View Article and Find Full Text PDFCan J Infect Dis Med Microbiol
December 2024
Department of Applied Health Sciences, School of Health Sciences, Kisii University, Kisii, Kenya.
The persistent increase in multidrug-resistant pathogens has catalyzed the creation of novel strategies to address antivirulence and anti-infective elements. Such methodologies aim to diminish the selective pressure exerted on bacterial populations, decreasing the likelihood of resistance emergence. This review explores the role of biofilm formation as a significant virulence factor and its impact on the development of antimicrobial resistance (AMR).
View Article and Find Full Text PDFFront Microbiol
December 2024
Department of Biomedical Engineering, Boston University, Boston, MA, United States.
Introduction: Antimicrobial resistance (AMR) is a global health crisis that is predicted to worsen in the coming years. While improper antibiotic usage is an established driver, less is known about the impact of other endogenous and exogeneous environmental factors, such as metals, on AMR. One metal of interest is zinc as it is often used as a supplement for diarrhea treatment prior to antibiotics.
View Article and Find Full Text PDFFront Microbiol
December 2024
Department of Animal Sciences, University of Florida, Gainesville, FL, United States.
Neonatal calf diarrhea (NCD) remains a significant contributor to calf mortality within the first 3 weeks of life, prompting widespread antibiotic use with associated concerns about antimicrobial resistance and disruption of the calf gut microbiota. Recent research exploring NCD treatments targeting gut microbiota dysbiosis has highlighted probiotic supplementation as a promising and safe strategy for gut homeostasis. However, varying treatment outcomes across studies suggest the need for efficient treatment options.
View Article and Find Full Text PDFAdv Biomed Res
October 2024
Department of Community Medicine, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India.
Background: has emerged as an important nosocomial opportunistic pathogen, often associated with serious infections. We investigated the antimicrobial resistance trends, predisposing factors, and infection outcomes associated with isolated in a secondary-care hospital in Oman.
Materials And Methods: A retrospective study was conducted at a secondary-care hospital in the northern region of Oman after receiving approval from the research ethics and approval committee of Oman.
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