Related Experiment Video
Updated: Jul 17, 2026
07:46
Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus (MRSA) in Rat
Published on: June 4, 2012
Meticillin-resistant Staphylococcus aureus in animals: a review
1School of Agriculture, Food Science and Veterinary Medicine, University College, Dublin, Belfield, Dublin 4, Ireland. nola.leonard@ucd.ie
Veterinary Journal (London, England : 1997)
|January 12, 2007
Summary
Meticillin-resistant Staphylococcus aureus (MRSA) is increasingly found in animals, with strains in pets often matching human ones. This highlights the need for better control and prevention strategies in veterinary medicine to manage MRSA transmission.
Area of Science:
- Veterinary Medicine
- Infectious Diseases
- Epidemiology
Background:
- Meticillin-resistant Staphylococcus aureus (MRSA) emerged in human medicine and has been increasingly reported in animals over the last decade.
- MRSA prevalence in human infections varies geographically, with high rates in the USA and Southern Europe, and low rates in Northern Europe.
Purpose of the Study:
- To review published data on MRSA prevalence and epidemiology in animals.
- To propose strategies for preventing and controlling MRSA in veterinary practice.
Main Methods:
- Review of published epidemiological data.
- Analysis of phenotypic and molecular typing data of MRSA isolates.
- Comparison of MRSA strains from animals and humans.
Main Results:
- MRSA isolates from dogs and cats are indistinguishable from human healthcare-associated isolates.
- MRSA strains from horses and associated personnel differ from human isolates.
- Evidence suggests bidirectional transfer of MRSA between animals and humans.
Conclusions:
- MRSA poses a growing concern in animal populations, with potential for zoonotic transmission.
- Current control guidelines for animals are adapted from human protocols.
- Further research into risk factors for MRSA in animals is crucial for developing specific veterinary guidelines.
Related Concept Videos
01:25Clinical 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...
01:25Mechanism 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...
01:29Staphylococcal 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...