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Antimicrobial drug use and resistance among respiratory pathogens in the community
1Department of Microbiology, Mount Sinai Hospital, Toronto, Ontario, Canada. dlow@mtsinai.on.ca
Abstract:
There is substantial evidence that the overuse of antibiotics is a major cause for the emergence of resistance in respiratory pathogens in the community. However, it is also recognized that the mechanisms of resistance, the cost of resistance to the fitness of the organism, and the ability of the resistant strain to disseminate are all important contributors to this problem. Therefore, when developing strategies to control and/or prevent the emergence of resistance, health care professionals must take each of these factors into consideration. As we enter a new era in the use of fluoroquinolones for the treatment of respiratory tract infections, we have an opportunity to apply such lessons learned in the past to minimize or prevent the development of resistance to this class of antimicrobial drugs in the future.
Insights
Overuse of antibiotics fuels resistance in respiratory pathogens. Strategies to combat this must consider resistance mechanisms, fitness costs, and dissemination to prevent future resistance to fluoroquinolones.
Area of Science:
- Microbiology
- Infectious Diseases
- Pharmacology
Background:
- Antibiotic overuse is a primary driver of resistance in community-acquired respiratory pathogens.
- Understanding resistance mechanisms, fitness costs, and dissemination is crucial for effective control.
Purpose of the Study:
- To highlight the multifaceted nature of antibiotic resistance in respiratory pathogens.
- To emphasize the need for comprehensive strategies in controlling antimicrobial resistance.
- To inform the judicious use of fluoroquinolones in respiratory tract infections.
Main Methods:
- Review of existing evidence on antibiotic resistance mechanisms.
- Analysis of factors contributing to the spread of resistant strains.
- Consideration of fitness costs associated with resistance.
Main Results:
- Antibiotic overuse significantly contributes to resistance in respiratory pathogens.
- Multiple factors, including resistance mechanisms, fitness, and dissemination, influence resistance emergence.
- Past lessons learned are critical for future resistance prevention.
Conclusions:
- Healthcare professionals must integrate diverse factors when developing resistance control strategies.
- A proactive approach is needed to minimize or prevent future resistance to fluoroquinolones.
- Judicious use of antimicrobials is essential for preserving treatment efficacy.