Assessment of Cross-Reactive Neutralizing Antibodies Induction Against H5N1 Clade 2.3.4.4b by Prior Seasonal Influenza Immunization in Retail Workers - Takeaways - MDSpire
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Evaluation of Cross-Reactive Neutralizing Antibody Response to H5N1 Clade 2.3.4.4b Following Seasonal Influenza Vaccination in Retail Employees

  • By

  • Andrea Arroyave

  • Henintsoa Rabezanahary

  • Aude Wantchecon

  • Vonintsoa Lalaina Rahajamanana

  • Ahmed Sahli

  • Mathieu Thériault

  • Denis Boudreau

  • Caroline Gilbert

  • Sylvie Trottier

  • Mariana Baz

  • August 20, 2025

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  • 1

    The study assessed whether seasonal influenza vaccination induces cross-reactive antibodies against H5N1 strains in retail workers.

  • 2

    No cross-reactivity against H5N1 was detected, highlighting the need for targeted vaccines for H5N1 viruses.

  • 3

    H5N1 clade 2.3.4.4b has raised global concern due to its rapid spread and zoonotic potential, affecting multiple species.

  • 4

    Current seasonal influenza vaccines do not protect against avian influenza subtypes but are crucial for preventing coinfections.

  • 5

    Understanding population-level immunity is essential for assessing pandemic risk and guiding public health strategies.

Original Source(s)

Assessment of Cross-Reactive Neutralizing Antibodies Induction Against H5N1 Clade 2.3.4.4b by Prior Seasonal Influenza Immunization in Retail Workers

  • by Andrea Arroyave, Henintsoa Rabezanahary, Aude Wantchecon, Vonintsoa Lalaina Rahajamanana, Ahmed Sahli, Mathieu Thériault, Denis Boudreau, Caroline Gilbert, Sylvie Trottier, Mariana Baz

  • August 20, 2025

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