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Following in Real Time the Impact of Pneumococcal Virulence Factors in an Acute Mouse Pneumonia Model Using Bioluminescent Bacteria
Published on: February 23, 2014
Viral Pneumonias
Jennifer Febbo1, Jonathan Revels1, Loren Ketai2
1University of New Mexico, 2211 Lomas Boulevard NE, Albuquerque, NM 87106, USA.
Viral pneumonia, often community-acquired, typically presents as airway-centric infections. Lobar consolidation suggests bacterial coinfection, except in adenovirus cases, and severity increases in immunocompromised individuals.
Area of Science:
- Pulmonology
- Infectious Diseases
- Radiology
Background:
- Community-acquired viral pneumonia is common, often caused by influenza, parainfluenza, RSV, human metapneumovirus, and adenovirus.
- Imaging typically shows airway-centric patterns like bronchiolitis and bronchopneumonia.
Purpose of the Study:
- To differentiate viral pneumonia patterns from bacterial coinfections on chest imaging.
- To understand viral pneumonia presentation in immunocompromised hosts and rare infections.
Main Methods:
- Review of chest imaging findings in various viral pneumonia cases.
- Correlation of imaging patterns with specific viral etiologies.
- Analysis of pneumonia presentation in immunocompromised patients.
Main Results:
- Airway-centric patterns (bronchiolitis, bronchopneumonia) are characteristic of common viral pneumonias.
- Lobar consolidation usually indicates bacterial coinfection, except in adenovirus pneumonia.
- Immunocompromised hosts are susceptible to severe viral pneumonia, including CMV and varicella, with different imaging patterns.
- Hantavirus pulmonary syndrome presents uniquely and has high mortality.
Conclusions:
- Chest imaging patterns can help differentiate viral pneumonia from bacterial coinfection.
- Recognizing atypical presentations in immunocompromised patients and rare viral syndromes is crucial for diagnosis and management.
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