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Published on: September 11, 2020
Macrolide and ketolide resistance with Streptococcus pneumoniae
1Clinical Microbiology Laboratories, University of Iowa Hospital and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA. gary-doern@uiowa.edu
Abstract:
Antimicrobial agents in the macrolide family have long been considered drugs of potential utility in the management of infections caused by Streptococcus pneumoniae. However, with the emergence of macrolide resistance, the clinical value of macrolides in pneumococcal infections is threatened. In part, as a consequence of the development of macrolide resistance, recently the first agent in the ketolide antimicrobial class, telithromycin, was developed and introduced into clinical practice. The ketolides are macrolide antimicrobials whose chemistry has been modified so as avoid the effects of the most common mechanisms of macrolide resistance with S pneumoniae. This discussion reviews the current state of resistance to macrolides and ketolides with S pneumoniae in North America.
Insights
Macrolide resistance in Streptococcus pneumoniae threatens treatment options. Ketolides, like telithromycin, offer a solution by overcoming common resistance mechanisms in North America.
Area of Science:
- Microbiology
- Infectious Diseases
- Pharmacology
Background:
- Macrolide antimicrobials are crucial for treating Streptococcus pneumoniae infections.
- Emerging macrolide resistance in S. pneumoniae compromises clinical efficacy.
- This resistance necessitates the development of alternative antimicrobial agents.
Purpose of the Study:
- To review the current status of macrolide and ketolide resistance in Streptococcus pneumoniae in North America.
- To highlight the impact of antimicrobial resistance on treatment strategies for pneumococcal infections.
Main Methods:
- Literature review of studies on macrolide and ketolide resistance patterns.
- Analysis of resistance mechanisms in Streptococcus pneumoniae.
- Focus on data from North American clinical settings.
Main Results:
- Significant macrolide resistance in S. pneumoniae has been observed.
- Ketolides, such as telithromycin, demonstrate activity against common macrolide-resistant strains.
- Understanding resistance is key to effective antimicrobial stewardship.
Conclusions:
- Macrolide resistance poses a significant challenge for treating S. pneumoniae infections.
- Ketolides represent a promising therapeutic option to overcome existing resistance.
- Continued surveillance of antimicrobial resistance is essential for public health.
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