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Macrolide resistance in pneumococci-is it relevant?
Allen C Cheng1,2,3, Adam W J Jenney4,3,5
1Infection Prevention and Healthcare Epidemiology Unit, Melbourne, Australia.
Abstract:
Macrolide antibiotics are widely used for a range of indications, including pneumonia. Both high-level and low-level resistance to macrolides is increasing in pneumococci globally. Macrolide resistance in pneumococci is of limited clinical relevance where ß-lactams remain the mainstay of treatment, such as for moderate/severe pneumonia; however, data suggest that macrolides may not be able to be relied on as monotherapy for serious pneumococcal infections.
Insights
Increasing macrolide resistance in Streptococcus pneumoniae poses a growing concern for pneumonia treatment. While ß-lactams remain effective, macrolides may not be suitable as sole therapy for severe pneumococcal infections.
Area of Science:
- Microbiology and Infectious Diseases
- Pharmacology and Therapeutics
Background:
- Macrolide antibiotics are frequently prescribed for various infections, notably pneumonia.
- A significant rise in both high-level and low-level macrolide resistance among Streptococcus pneumoniae strains is observed globally.
Discussion:
- Macrolide resistance in pneumococci has minimal clinical impact when ß-lactam antibiotics are the primary treatment for moderate to severe pneumonia.
- However, emerging data indicate potential limitations of macrolides as monotherapy for severe pneumococcal infections.
Key Insights:
- Global increase in macrolide resistance in Streptococcus pneumoniae.
- Limited clinical relevance of macrolide resistance when ß-lactams are used for pneumonia.
- Macrolides may not be reliable for monotherapy in serious pneumococcal infections.
Outlook:
- Need for ongoing surveillance of macrolide resistance patterns.
- Re-evaluation of treatment guidelines for severe pneumococcal pneumonia.
- Exploration of alternative antibiotic strategies to combat resistant strains.
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