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Problems with antimicrobial resistance in gram-positive cocci
1Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA.
Abstract:
The development of antimicrobial resistance has almost invariably accompanied the therapeutic use of antimicrobial agents. Newer antimicrobials have succeeded partly but not entirely in overcoming the problem of resistance. Antimicrobial resistance in gram-positive cocci has achieved its greatest prominence in the past 15 years. There has been a steady erosion of antimicrobial activity against gram-positive cocci. The presentations in this symposium dealt with some of the important problems of antimicrobial resistance in gram-positive cocci, including methicillin resistance and multidrug resistance in staphylococci, penicillin resistance in pneumococci, and vancomycin resistance in enterococci. A related problem that warrants attention is the potential for explosive development of macrolide resistance in gram-positive cocci. This potential is particularly pertinent because the popularity of a number of new macrolides has led to a striking increase in their use. This occurrence will almost certainly be accompanied by a generalized increase in resistance in gram-positive cocci.
Insights
Antimicrobial resistance in gram-positive bacteria is a growing concern, with increasing resistance to methicillin, penicillin, and vancomycin. New macrolides may accelerate this trend.
Area of Science:
- Microbiology
- Infectious Diseases
- Pharmacology
Background:
- Antimicrobial resistance (AMR) is a significant challenge in modern medicine.
- The emergence and spread of resistant gram-positive bacteria have escalated over the past 15 years.
- Existing antimicrobial agents face diminishing efficacy against common gram-positive pathogens.
Purpose of the Study:
- To review key challenges in antimicrobial resistance among gram-positive cocci.
- To highlight emerging threats, particularly macrolide resistance.
- To discuss the implications of increased macrolide usage.
Main Methods:
- Symposium presentations summarizing current research and clinical observations.
- Review of trends in antimicrobial resistance patterns.
- Analysis of the impact of new antimicrobial agent usage.
Main Results:
- Significant resistance observed in staphylococci (methicillin, multidrug resistance), pneumococci (penicillin resistance), and enterococci (vancomycin resistance).
- A notable increase in the use of new macrolide antibiotics.
- Potential for rapid escalation of macrolide resistance in gram-positive cocci.
Conclusions:
- Antimicrobial resistance in gram-positive bacteria is a persistent and evolving problem.
- The widespread use of new macrolides poses a significant risk for accelerated resistance development.
- Continued surveillance and strategic antimicrobial stewardship are crucial.