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MRSA compendium of epidemiology, transmission, pathophysiology, treatment, and prevention within one health framework
Muhammad Shoaib1, Amjad Islam Aqib2, Iqra Muzammil3
1Key Laboratory of New Animal Drug Project, Gansu Province/Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture and Rural Affairs/Lanzhou Institute of Husbandry and Pharmaceutical Sciences of the Chinese Academy of Agricultural Sciences, Lanzhou, China.
Abstract:
Staphylococcus aureus is recognized as commensal as well as opportunistic pathogen of humans and animals. Methicillin resistant strain of S. aureus (MRSA) has emerged as a major pathogen in hospitals, community and veterinary settings that compromises the public health and livestock production. MRSA basically emerged from MSSA after acquiring SCCmec element through gene transfer containing mecA gene responsible for encoding PBP-2α. This protein renders the MRSA resistant to most of the β-lactam antibiotics. Due to the continuous increasing prevalence and transmission of MRSA in hospitals, community and veterinary settings posing a major threat to public health. Furthermore, high pathogenicity of MRSA due to a number of virulence factors produced by S. aureus along with antibiotic resistance help to breach the immunity of host and responsible for causing severe infections in humans and animals. The clinical manifestations of MRSA consist of skin and soft tissues infection to bacteremia, septicemia, toxic shock, and scalded skin syndrome. Moreover, due to the increasing resistance of MRSA to number of antibiotics, there is need to approach alternatives ways to overcome economic as well as human losses. This review is going to discuss various aspects of MRSA starting from emergence, transmission, epidemiology, pathophysiology, disease patterns in hosts, novel treatment, and control strategies.
Insights
Methicillin-resistant Staphylococcus aureus (MRSA) is a growing threat in human and animal health, causing severe infections due to antibiotic resistance and virulence factors. Alternative treatments and control strategies are urgently needed to combat its spread and impact.
Area of Science:
- Microbiology
- Infectious Diseases
- Public Health
Background:
- Staphylococcus aureus is a common bacterium, acting as both a harmless commensal and a dangerous pathogen.
- Methicillin-resistant Staphylococcus aureus (MRSA) has become a significant threat in healthcare, community, and veterinary settings.
- MRSA arises from MSSA acquiring the SCCmec element, leading to resistance against beta-lactam antibiotics via the mecA gene and PBP-2α production.
Purpose of the Study:
- To provide a comprehensive overview of MRSA.
- To discuss the emergence, transmission, and epidemiology of MRSA.
- To explore the pathophysiology, clinical manifestations, and novel therapeutic and control strategies for MRSA.
Main Methods:
- This review synthesizes existing literature on MRSA.
- It examines the genetic basis of MRSA antibiotic resistance.
- It analyzes the virulence factors contributing to MRSA pathogenicity.
Main Results:
- MRSA poses a substantial risk to public health and livestock.
- MRSA infections range from skin and soft tissue infections to life-threatening conditions like bacteremia and septicemia.
- Increasing antibiotic resistance necessitates the exploration of alternative interventions.
Conclusions:
- MRSA represents a critical challenge due to its resistance and virulence.
- Effective control and novel treatment strategies are essential to mitigate MRSA's impact.
- Further research into alternative approaches is crucial for managing MRSA infections.
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