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Rapid Molecular Detection and Differentiation of Influenza Viruses A and B
05:38

Rapid Molecular Detection and Differentiation of Influenza Viruses A and B

Published on: January 30, 2017

Recent advances in the diagnosis and treatment of influenza pneumonia

Lucia Marzoratti1, Hernán A Iannella, Victoria Fernández Gómez

  • 1CEMIT (Centro Médico Investigadores Tucumán), San Miguel de Tucumán, Tucumán, Argentina, luciamarzoratti@gmail.com.

Current Infectious Disease Reports
|April 6, 2012
PubMed

Insights

Influenza can cause severe pneumonia, often underestimated by standard scores and progressing rapidly. Early antiviral treatment with neuraminidase inhibitors is recommended, even before lab confirmation.

Area of Science:

  • Infectious Diseases
  • Pulmonology
  • Virology

Background:

  • Influenza infection can lead to severe pneumonia, a potentially fatal complication.
  • Pneumonia associated with the 2009 H1N1 influenza pandemic was often underestimated by standard severity scores and progressed rapidly.
  • Rapid progression can lead to respiratory failure, necessitating prompt diagnosis and management.

Purpose of the Study:

  • To highlight the diagnostic challenges and management strategies for influenza-related pneumonia.
  • To emphasize the limitations of current pneumonia severity scores in pandemic influenza.
  • To provide guidance on laboratory confirmation and antiviral treatment decisions.

Main Methods:

  • Review of clinical and laboratory findings in cases of influenza-related pneumonia.
  • Evaluation of the utility of rapid antigen tests, immunofluorescence assays, and molecular methods (rRT-PCR) for diagnosis.
  • Assessment of the effectiveness of neuraminidase inhibitors (NI) for treatment and chemoprophylaxis.

Main Results:

  • Common pneumonia severity scores often underestimate influenza-related pneumonia, particularly during pandemics.
  • Rapid diagnostic tests have limited sensitivity; real-time reverse-transcriptase polymerase chain reaction (rRT-PCR) or viral culture are required for definitive confirmation of pandemic H1N1 influenza A.
  • Annual influenza vaccination is the primary preventive measure.
  • Antiviral treatment decisions should prioritize clinical and epidemiological factors over delayed laboratory results.
  • Neuraminidase inhibitors are the recommended antiviral agents.

Conclusions:

  • Influenza-induced pneumonia requires careful clinical assessment due to limitations in standard scoring systems.
  • Accurate etiological confirmation via molecular testing is crucial for appropriate management.
  • Timely initiation of neuraminidase inhibitor therapy is critical for improving outcomes in influenza pneumonia.
  • Vaccination remains the most effective strategy for preventing influenza and its complications.

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