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Updated: Jan 20, 2026

Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria
Published on: February 23, 2014
Animal Models of Pneumococcal pneumonia
Noemi Borsa1,2, Marta Di Pasquale1, Marcos I Restrepo3,4
1Department of Pathophysiology and Transplantation, University of Milan, Internal Medicine Department, Respiratory unit and Adult Cystic Fibrosis Center, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy.
Abstract:
Streptococcus pneumoniae remains the most common bacterial pathogen causing lower respiratory tract infections and is a leading cause of morbidity and mortality worldwide, especially in children and the elderly. Another important aspect related to pneumococcal infections is the persistent rate of penicillin and macrolide resistance. Therefore, animal models have been developed to better understand the pathogenesis of pneumococcal disease and test new therapeutic agents and vaccines. This narrative review will focus on the characteristics of the different animal pneumococcal pneumonia models. The assessment of the different animal models will include considerations regarding pneumococcal strains, microbiology properties, procedures used for bacterial inoculation, pathogenesis, clinical characteristics, diagnosis, treatment, and preventive approaches.
Insights
Streptococcus pneumoniae causes severe pneumonia, with rising antibiotic resistance necessitating better animal models. This review details various models for studying pneumococcal disease and evaluating new treatments and vaccines.
Area of Science:
- Microbiology
- Infectious Diseases
- Immunology
Background:
- Streptococcus pneumoniae is a major cause of bacterial pneumonia globally, particularly in vulnerable populations.
- Increasing penicillin and macrolide resistance in S. pneumoniae complicates treatment and highlights the need for novel strategies.
- Animal models are crucial for understanding pneumococcal pathogenesis and developing effective interventions.
Purpose of the Study:
- To review and characterize diverse animal models of pneumococcal pneumonia.
- To provide a comprehensive assessment of factors influencing model utility in research.
Main Methods:
- Narrative review of existing literature on animal models for Streptococcus pneumoniae pneumonia.
- Analysis of models based on bacterial strains, inoculation methods, and pathogenesis.
- Evaluation of models concerning clinical presentation, diagnosis, and therapeutic/preventive strategies.
Main Results:
- Different animal models exhibit varying suitability for studying specific aspects of pneumococcal pneumonia.
- Key considerations include the choice of S. pneumoniae strain and inoculation route.
- Models allow for the investigation of disease progression, host response, and efficacy of interventions.
Conclusions:
- Appropriate selection of animal models is critical for advancing research on Streptococcus pneumoniae infections.
- These models are indispensable tools for the development of new vaccines and antimicrobial therapies.
- Further refinement of animal models will aid in combating the global burden of pneumococcal disease.
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