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Open research questions in Antimicrobial Resistance in Staphylococcus

654 gap statements mined from Antimicrobial Resistance in Staphylococcus papers in our 7.9M-paper local library, which holds 2,434 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • The genetic mechanisms underlying the reversion of VVE to a vancomycin-resistant phenotype are not fully understood. The stability of vancomycin resistance in VVE is not well characterized. The role of conjugative transfer in the spread of vancomycin resistance in VVE is not clear.

    Heteroresistance in vancomycin-variable Enterococcus faecium ST80 isolate · 2026 · DOI

  • The molecular mechanisms underlying the interaction between LAB and S. aureus remain poorly understood. There is a need to understand how LAB strains interact with S. aureus biofilms. The study aims to fill this gap by characterizing the transcriptional responses associated with the interaction between LAB and S. aureus.

    Transcriptomic reprogramming and displacement of mastitis-associated Staphylococcus aureus biofilms by lactic acid bacteria · 2026 · DOI

  • The study highlights the need for improved methods for detecting and characterizing LA-MRSA in the food chain.

    Livestock-associated methicillin-resistant Staphylococcus aureus along the pork food chain: a study of four commercial pig fattening farms in north-east Germany and survival in processed meat products · 2026 · DOI

  • Further validation using primary clinical specimens is required before the assay can be used for direct detection without prior bacterial culture, - Expanded multiplex assays capable of simultaneously detecting other clinically relevant species, such as S. aureus, S. haemolyticus, and S.

    Rapid Detection and Differentiation of Staphylococcus hyicus and Non-hyicus Staphylococci Using a Novel Duplex Real-Time Polymerase Chain Reaction · 2026 · DOI

  • The study identifies the challenge of mastitis being a significant health issue among cattle, leading to substantial economic losses. The paper mentions the challenge of Staphylococcus aureus being a predominant pathogen associated with mastitis. The study highlights the challenge of limited detailed molecular characterization of the strains in Pakistan.

    Comprehensive Molecular and Epidemiological Characterization of Staphylococcus aureus Isolated from Bovine Mastitis in Water Buffalo of the Peshawar Division, Khyber Pakhtunkhwa, Pakistan · 2025 · DOI

  • There is a need to identify clinically relevant pathogenic microorganisms present in the nasal and rectal flora of these kangaroos.

    Human Pathogenic Bacteria Within the Nasal and Rectal Microbiome of Macropus giganteus · 2025 · DOI

  • However, their mechanisms of action against methicillin-resistant Staphylococcus aureus (MRSA) remains unclear.

    Proanthocyanidins inhibit methicillin-resistant Staphylococcus aureus by disrupting membrane integrity and reprogramming transcriptional pathways · 2026 · DOI

  • Although the ArlRS two-component system is known to regulate autolysis, capsule synthesis, and virulence, the specific role of ArlR in environmental stress adaptation remains poorly understood.

    ArlR regulates environmental stress tolerance and biofilm formation in foodborne Staphylococcus aureus · 2026 · DOI

  • Further standardization and validation are warranted to optimize their use across diverse healthcare settings.

    Comparative accuracy of molecular assays for detecting methicillin-resistant Staphylococcus aureus: Evidence from 32 studies · 2026 · DOI

  • In this low-prevalence setting, MRSA epidemiology was characterized by limited evidence of sustained nosocomial transmission despite co-circulation of multiple healthcare-associated, livestock-associated and community-associated lineages.

    Limited evidence of nosocomial MRSA transmission in a low-prevalence tertiary care center: a five-year genomic epidemiology study · 2026 · DOI

  • While antibiotic resistance and host factors are well-known contributors, bacterial genetic determinants remain relatively underexplored and likely play a critical role in disease severity and therapeutic response.

    Resistance or Virulence: Which Staphylococcus aureus Genes Are Associated With Poor Clinical Outcomes in Pediatric Acute Hematogenous Osteomyelitis? · 2026 · DOI

  • This process is regulated by intricate and still not fully understood mechanisms.

    Role and regulation of membrane efflux pumps in Staphylococcus pseudintermedius clinical isolates · 2025 · DOI

  • It is recommended that WGS of more strains be deposited to overcome limited data, and laboratory tests be performed to analyse the consistency between genetic predicted and phenotypic resistance.

    Whole genome sequencing-based prediction of antibiotic-resistance of ocular Staphylococcus aureus across six continents · 2025 · DOI

  • Knowledge about air as a pool of pathogens and multidrug resistance (MDR) in healthcare units apart from hospitals is scarce.

    Multidrug resistance assessment of indoor air in Portuguese long-term and acute healthcare settings · 2025 · DOI

  • This may suggest possible yet unknown routes of infection that need to be explored.

    Multidrug resistance assessment of indoor air in Portuguese long-term and acute healthcare settings · 2025 · DOI

  • Although a ratio of the area under the curve to the minimum inhibitory concentration (AUC/MIC) ≥400 mg hour/L is advocated for efficacy, the association between pharmacokinetic/pharmacodynamic (PK/PD) target attainment and clinical outcomes remains uncertain.

    Treatment outcomes in methicillin-resistant Staphylococcus aureus bacteraemia patients receiving vancomycin: a retrospective study at a tertiary hospital · 2025 · DOI

  • The lack of understanding of how to infer transmission dynamics in health-care settings. The limited application of phylodynamic analysis to nosocomial outbreaks.

    Fast hospital discharge rates blur within-hospital ‘transmission footprint’ in bacterial genomes, as showcased with Staphylococcus aureus · 2026 · DOI

  • Sequence type (ST) 80 vanA-encoding VREfm predominate in Irish hospitals, but their transmission is poorly understood.

    Protracted transmission and persistence of ST80 vancomycin-resistant Enterococcus faecium clonal complex types CT2933, CT2932 and CT1916 in a large Irish hospital: a 39-month whole-genome sequencing study · 2024 · DOI

  • To investigate the use of other methods, such as machine learning, to improve the accuracy of transmission rate estimates. To develop strategies for containing nosocomial outbreaks based on the study's findings.

    Fast hospital discharge rates blur within-hospital ‘transmission footprint’ in bacterial genomes, as showcased with Staphylococcus aureus · 2026 · DOI

  • Combine time-resolved RNA-seq, metabolomics, pH-controlled experiments and purified metabolites to distinguish the contributions of environmental acidification and other LAB-derived factors to S. aureus biofilm persistence. Evaluate the most promising strains in more physiologically relevant in vitro models, including human mammary epithelial cell cultures with secretory features.

    Transcriptomic reprogramming and displacement of mastitis-associated Staphylococcus aureus biofilms by lactic acid bacteria · 2026 · DOI

  • Further study on the transmission dynamics of LA-MRSA along the food chain, - Investigation of the ecological adaptation and within-farm transmission of LA-MRSA, - Research on the detection of cross-transmission events using WGS-based…

    Livestock-associated methicillin-resistant Staphylococcus aureus along the pork food chain: a study of four commercial pig fattening farms in north-east Germany and survival in processed meat products · 2026 · DOI

  • Identifying the source of the outbreak. Determining the transmission route of the outbreak strain. Implementing effective infection-control measures to prevent further transmission.

    Outbreak of penicillin-susceptible, eta-positive Staphylococcus aureus in a neonatal intensive care unit · 2026 · DOI

  • Further studies on transmission dynamics of penicillin-susceptible S.

    Outbreak of penicillin-susceptible, eta-positive Staphylococcus aureus in a neonatal intensive care unit · 2026 · DOI

  • The performance of the dqPCR assay for isolate identification was evaluated using cultured bacterial isolates obtained from EE cases, - The application of the assay to DNA extracted directly from EE lesion specimens was not evaluated, - The mixed-population evaluation was limited to three non-hyicus staphylococcal species and selected concentration combinations, - Performance in mixtures containing a broader range…

    Rapid Detection and Differentiation of Staphylococcus hyicus and Non-hyicus Staphylococci Using a Novel Duplex Real-Time Polymerase Chain Reaction · 2026 · DOI

  • The study only examined the Peshawar division of Khyber Pakhtunkhwa, Pakistan, - The study had a limited sample size of 275 buffalo, - The study did not examine the effectiveness of treatments…

    Comprehensive Molecular and Epidemiological Characterization of Staphylococcus aureus Isolated from Bovine Mastitis in Water Buffalo of the Peshawar Division, Khyber Pakhtunkhwa, Pakistan · 2025 · DOI

Most-cited papers in Antimicrobial Resistance in Staphylococcus

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Open questions raised by papers listed on this page include: (1) The genetic mechanisms underlying the reversion of VVE to a vancomycin-resistant phenotype are not fully understood (“Heteroresistance in vancomycin-variable Enterococcus faecium ST80 isolate”, 2026); (2) The molecular mechanisms underlying the interaction between LAB and S. aureus remain poorly understood (“Transcriptomic reprogramming and displacement of mastitis-associated…”, 2026); (3) Their mechanisms of action against methicillin-resistant Staphylococcus aureus (MRSA) remains unclear (“Proanthocyanidins inhibit methicillin-resistant Staphylococcus aureus by…”, 2026); (4) Although the ArlRS two-component system is known to regulate autolysis, capsule synthesis, and virulence, the specific role of ArlR in environmental stress adaptation remains poorly understood (“ArlR regulates environmental stress tolerance and biofilm formation in…”, 2026); (5) Further standardization and validation are warranted to optimize their use across diverse healthcare settings (“Comparative accuracy of molecular assays for detecting methicillin-resistant…”, 2026). 654 gap statements have been mined from Antimicrobial Resistance in Staphylococcus papers in our 7.9M-paper local library, which holds 2,434 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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