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Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
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Related Experiment Video

Updated: Jun 15, 2026

Multiplex PCR Assay for Typing of Staphylococcal Cassette Chromosome Mec Types I to V in Methicillin-resistant Staphylococcus aureus
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Multiplex PCR Assay for Typing of Staphylococcal Cassette Chromosome Mec Types I to V in Methicillin-resistant Staphylococcus aureus

Published on: September 5, 2013

Community-associated meticillin-resistant Staphylococcus aureus.

Frank R DeLeo1, Michael Otto, Barry N Kreiswirth

  • 1Laboratory of Human Bacterial Pathogenesis, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, USA. fdeleo@niaid.nih.gov

Lancet (London, England)
|March 9, 2010
PubMed
Summary
This summary is machine-generated.

Community-associated MRSA (CA-MRSA) infections are increasingly prevalent and virulent, often affecting healthy individuals. This review highlights current knowledge and future directions for CA-MRSA prophylaxis and treatment.

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Multiplex PCR Assay for Typing of Staphylococcal Cassette Chromosome Mec Types I to V in Methicillin-resistant Staphylococcus aureus
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Published on: September 5, 2013

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
14:04

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria

Published on: May 8, 2013

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Public Health

Background:

  • Meticillin-resistant Staphylococcus aureus (MRSA) is a global health concern, causing significant illness and death.
  • Health-care-associated MRSA infections typically affect patients with risk factors like surgery or devices.
  • Community-associated MRSA (CA-MRSA) infections occur in healthy individuals, suggesting increased virulence and transmissibility.

Purpose of the Study:

  • To review current knowledge on the emergence, virulence, and treatment of CA-MRSA infections.
  • To provide insights into future prophylaxis and novel treatment strategies for CA-MRSA.

Main Methods:

  • Literature review of recent studies on CA-MRSA.
  • Synthesis of information on epidemiology, clinical features, and treatment options.
  • Analysis of factors contributing to CA-MRSA emergence and spread.

Main Results:

  • CA-MRSA strains exhibit enhanced virulence and transmissibility compared to hospital-associated strains.
  • Limited treatment options exacerbate the challenge of managing CA-MRSA infections.
  • Despite progress, a comprehensive understanding of CA-MRSA remains incomplete.

Conclusions:

  • Further research is crucial to understand the unique characteristics of CA-MRSA.
  • Development of effective prophylaxis and new therapeutic interventions is urgently needed.
  • Addressing the growing threat of CA-MRSA requires a multi-faceted approach.