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Published on: February 23, 2014
Antibiotic resistance of pathogens causing community-acquired pneumonia
Charles Feldman1, Ronald Anderson
1Division of Pulmonology, Department of Internal Medicine, Charlotte Maxeke Johannesburg Academic Hospital, Johannesburg, South Africa. charles.feldman@wits.ac.za
Abstract:
Community-acquired pneumonia remains an important cause of disease and death in both developed and developing countries and therefore continues to have a major medical impact. The mortality remains high despite the ready availability of potent antimicrobial agents to which the organisms are susceptible. However, management of these infections is potentially complicated by the emerging resistance of many of the common pathogens to the different classes of antibiotics that are usually prescribed. Furthermore, it is also being recognized that antibiotic resistance or treatment failures may occur not only through traditional microbial antibiotic resistance mechanisms but also through less well defined mechanisms, particularly those developed by the microbes in relation to their quorum sensing/biofilm machinery. Much recent research in this field has been focused on evaluating the clinical impact of antibiotic resistance on optimal antibiotic treatment and antimicrobial choices, as well as alternative strategies to deal with antibiotic resistance and treatment failures.
Insights
Community-acquired pneumonia (CAP) causes significant mortality despite available antibiotics. Emerging antibiotic resistance and novel microbial mechanisms, like quorum sensing, complicate CAP treatment and necessitate exploring alternative strategies.
Area of Science:
- Microbiology
- Infectious Diseases
- Pharmacology
Background:
- Community-acquired pneumonia (CAP) is a leading cause of morbidity and mortality globally.
- High mortality persists despite effective antimicrobial agents due to rising pathogen resistance.
- Treatment challenges are exacerbated by emerging antibiotic resistance and less understood microbial mechanisms.
Purpose of the Study:
- To review the clinical impact of antibiotic resistance in CAP.
- To evaluate optimal antibiotic treatment and antimicrobial choices in the context of resistance.
- To explore alternative strategies for managing antibiotic resistance and treatment failures in CAP.
Main Methods:
- Literature review of recent research on antibiotic resistance in CAP.
- Analysis of clinical data regarding treatment outcomes and antimicrobial efficacy.
- Investigation into microbial mechanisms, including quorum sensing and biofilm formation, contributing to resistance.
Main Results:
- Antibiotic resistance significantly complicates the management of CAP.
- Emerging resistance mechanisms, beyond traditional ones, impact treatment efficacy.
- Quorum sensing and biofilm machinery play a role in treatment failures.
Conclusions:
- Effective management of CAP requires addressing emerging antibiotic resistance.
- Understanding novel resistance mechanisms is crucial for developing new therapeutic strategies.
- Alternative approaches are needed to overcome treatment failures in CAP.
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