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Related Concept Videos

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...
Mechanism of Antibiotic Resistance in MRSA01:25

Mechanism of Antibiotic Resistance in MRSA

Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and acquisition...
Staphylococcal Skin Infections01:29

Staphylococcal Skin Infections

Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
Defense Against Bacterial Pathogens01:31

Defense Against Bacterial Pathogens

The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic01:26

Healthcare Associated Infections I: Iatrogenic, Exogenic and Endogenic

Healthcare-associated infections (HAIs) occur in a healthcare facility while a person receives care for another ailment. This category also includes work-related infections among healthcare staff.
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Related Experiment Video

Updated: May 23, 2026

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
14:04

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria

Published on: May 8, 2013

Methicillin-resistant Staphylococcus infections.

Reid K Nakamura1, Emily Tompkins

  • 1Advanced Veterinary Care Center, Lawndale, CA, USA.

Compendium (Yardley, PA)
|April 11, 2012
PubMed
Summary

Methicillin-resistant Staphylococcus aureus (MRSA) is a common skin infection in humans and is increasingly found in animals. This review covers MRSA in both human and veterinary medicine, focusing on diagnosis, treatment, and prevention strategies.

Area of Science:

  • Veterinary Medicine
  • Infectious Diseases
  • Public Health

Background:

  • Methicillin-resistant Staphylococcus aureus (MRSA) is a prevalent cause of skin infections in human emergency departments.
  • Increasing prevalence of MRSA is a growing concern in veterinary medicine.

Purpose of the Study:

  • To review current knowledge on MRSA infections in human medicine.
  • To summarize the limited available information on MRSA in veterinary medicine.
  • To discuss diagnostic, treatment, and prevention options for MRSA.

Main Methods:

  • Literature review of human and veterinary medical sources.
  • Synthesis of information on MRSA epidemiology, clinical presentation, and management.

Main Results:

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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)

Published on: February 9, 2011

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Last Updated: May 23, 2026

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
14:04

Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria

Published on: May 8, 2013

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
12:18

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)

Published on: February 9, 2011

  • MRSA is a significant pathogen in human skin infections.
  • Data on MRSA in veterinary medicine is scarce but indicates a rising trend.
  • Comprehensive strategies for diagnosis, treatment, and prevention are crucial for both human and animal health.

Conclusions:

  • Effective management of MRSA requires a One Health approach, integrating human and veterinary medical perspectives.
  • Further research is needed to understand and control MRSA in veterinary populations.
  • Timely diagnosis and appropriate treatment are essential to curb MRSA spread.