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Updated: Jul 25, 2026
08:46
Rapid Diagnosis of Avian Influenza Virus in Wild Birds: Use of a Portable rRT-PCR and Freeze-dried Reagents in the Field
Published on: August 2, 2011
[Avian influenza virus].
Akiko Makino1, Yoshihiro Kawaoka
1Division of Virology, Department of Infection and Immunity, Institute of Medical Science, University of Tokyo.
Nihon Rinsho. Japanese Journal of Clinical Medicine
|December 21, 2005
Summary
Avian influenza viruses, primarily type A, vary in pathogenicity due to hemagglutinin cleavage site sequences. Highly pathogenic avian influenza poses a pandemic risk through potential human-to-human transmission.
Area of Science:
- Virology
- Molecular Biology
- Epidemiology
Context:
- Influenza viruses are classified into types A, B, and C based on protein antigenicity.
- Influenza A viruses are subtyped by surface hemagglutinin (HA) and neuraminidase (NA) proteins.
- Avian influenza viruses are exclusively type A, with varying pathogenicity.
Purpose:
- To review the molecular mechanisms underlying the pathogenicity of avian influenza viruses in humans.
- To understand the factors determining severe disease in birds caused by specific avian influenza subtypes.
- To assess the pandemic potential of avian influenza viruses.
Summary:
- Pathogenicity differences in avian influenza viruses are linked to the amino acid sequence at the HA cleavage site.
- Highly pathogenic avian influenza viruses have caused human infections since 1997.
- Human-to-human transmission capability in avian influenza viruses could trigger a pandemic.
Impact:
- Informing public health strategies for pandemic preparedness.
- Guiding research into antiviral therapies and vaccine development.
- Enhancing understanding of viral evolution and host adaptation.
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