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Published on: February 23, 2014
Epidemiology, virulence factors and management of the pneumococcus
Charles Feldman1, Ronald Anderson2
1Charlotte Maxeke Johannesburg Academic Hospital and Faculty of Health Sciences, University of the Witwatersrand Medical School, Johannesburg, South Africa.
Abstract:
Pneumococcal infections continue to cause significant morbidity and mortality in patients throughout the world. This microorganism remains the most common bacterial cause of community-acquired pneumonia and is associated with a considerable burden of disease and health-care costs in both developed and developing countries. Emerging antibiotic resistance has been a concern because of its potential negative impact on the outcome of patients who receive standard antibiotic therapy. However, there have been substantial changes in the epidemiology of this pathogen in recent years, not least of which has been due to the use of pneumococcal conjugate vaccines in children, with subsequent herd protection in unvaccinated adults and children. Furthermore, much recent research has led to a better understanding of the virulence factors of this pathogen and their role in the pathogenesis of severe pneumococcal disease, including the cardiac complications, as well as the potential role of adjunctive therapy in the management of severely ill cases. This review will describe recent advances in our understanding of the epidemiology, virulence factors, and management of pneumococcal community-acquired pneumonia.
Insights
Pneumococcal infections remain a global health threat, causing pneumonia and high costs. Vaccines and new research are improving understanding and management of this common bacterial pathogen.
Area of Science:
- Infectious Diseases
- Microbiology
- Public Health
Background:
- Pneumococcal infections are a leading cause of community-acquired pneumonia globally, imposing significant disease burden and healthcare costs.
- Emerging antibiotic resistance poses a threat to standard treatment outcomes for pneumococcal pneumonia.
- Recent advances have improved understanding of pneumococcal virulence and pathogenesis, including cardiac complications.
Approach:
- This review synthesizes recent research on pneumococcal community-acquired pneumonia.
- It examines epidemiological shifts, particularly the impact of pneumococcal conjugate vaccines.
- The review also covers virulence factors and novel therapeutic strategies.
Key Points:
- Pneumococcal conjugate vaccines have altered pathogen epidemiology, conferring herd protection.
- Understanding virulence factors is crucial for comprehending severe disease pathogenesis.
- Adjunctive therapies are being explored for managing severe pneumococcal pneumonia cases.
Conclusions:
- Recent advances offer a better grasp of pneumococcal epidemiology, virulence, and disease management.
- Vaccination strategies have significantly impacted pneumococcal disease patterns.
- Continued research is vital for addressing antibiotic resistance and optimizing patient outcomes.
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