Related Experiment Video
Updated: Aug 19, 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
[Importance of associated microorganisms in the development of acute pneumonia]
Abstract:
Sputum samples obtained from 106 patients with acute pneumonia have been studied by the quantitative microbiological method. Different microbial associations have been shown to play an important role in the development of acute pneumonia (67.9%). Microbiological studies have revealed the prevalence of pneumococci in the etiological structure of the disease. Staphylococci, hemophilic bacteria and Neisseria have been found to take part in the development of acute pneumonia in a lesser number of cases and more often occur in combination with pneumococci or form different associations themselves. The so-called "etiological" type of microbial associations has been determined, two or three microbial species being isolated at high concentrations (10(6) and over) and the percentage of patients with such combinations being 59.7 +/- 5.8%. The analysis of the clinical course of the disease has revealed that the presence of different microbial species in patients linked, to a great extent, with the clinical picture of the disease. These data may be used for prescribing adequate etiotropic therapy and for prognostication. Quantitative bacteriological studies carried out in the dynamics of the disease permit timely detection of changes in the microflora of the respiratory tracts, the evaluation of the effectiveness of antibacterial therapy in the process of its implementation and the rational correction of therapeutic measures.
Insights
Pneumonia is often caused by microbial associations, with pneumococci being most common. Understanding these microbial patterns aids in effective treatment and prognosis for acute pneumonia.
Area of Science:
- Microbiology
- Infectious Diseases
- Pulmonology
Context:
- Acute pneumonia affects numerous patients globally.
- Accurate etiological diagnosis is crucial for effective treatment.
- Microbial factors significantly influence disease presentation and progression.
Purpose:
- To investigate the role of microbial associations in acute pneumonia.
- To identify prevalent microorganisms and their combinations.
- To correlate microbial findings with clinical manifestations.
Summary:
- Quantitative microbiological analysis of sputum from 106 acute pneumonia patients.
- Identified microbial associations in 67.9% of cases, with pneumococci being predominant.
- Observed specific microbial combinations (2-3 species at high concentrations) in 59.7% of patients.
- Found correlations between microbial presence and clinical disease presentation.
Impact:
- Provides insights into the etiological structure of acute pneumonia.
- Supports the development of targeted etiotropic therapy.
- Facilitates accurate prognostication of disease outcomes.
- Enables dynamic monitoring of respiratory tract microflora and therapy effectiveness.
More Related Videos
06:43Studying Microbial Communities In Vivo: A Model of Host-mediated Interaction Between Candida Albicans and Pseudomonas Aeruginosa in the Airways
Published on: January 13, 2016
12:21A Mouse Model for the Transition of Streptococcus pneumoniae from Colonizer to Pathogen upon Viral Co-Infection Recapitulates Age-Exacerbated Illness
Published on: September 28, 2022
Related Concept Videos
Pneumonia I: Introduction
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Pneumonia II: Pathophysiology
Pneumonia III: Complications and Assessment
Microbiota of the Respiratory Tract
Atypical Pneumonia
Pneumonia I: Introduction