Antigenic comparison of H3N8 equine influenza viruses belonging to Florida sublineage clade 1 between vaccine strains and North American strains isolated in 2021–2022

Manabu Nemoto; Stephanie E. Reedy; Takanori Yano; Kenya Suzuki; Shino Fukuda; Marie Garvey; Yoshinori Kambayashi; Hiroshi Bannai; Koji Tsujimura; Takashi Yamanaka; Ann Cullinane; Thomas M. Chambers

doi:10.1007/s00705-023-05720-x

Antigenic comparison of H3N8 equine influenza viruses belonging to Florida sublineage clade 1 between vaccine strains and North American strains isolated in 2021–2022

Manabu Nemoto, Stephanie E. Reedy, Takanori Yano, Kenya Suzuki, Shino Fukuda, Marie Garvey, Yoshinori Kambayashi, Hiroshi Bannai, Koji Tsujimura, Takashi Yamanaka, Ann Cullinane, Thomas M. Chambers

Veterinary Science

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Equine influenza virus strains of Florida sublineage clade 1 (Fc1) have been circulating in North America. In this study, virus neutralization assays were performed to evaluate antigenic differences between Fc1 vaccine strains and North American Fc1 strains isolated in 2021–2022, using equine antisera against A/equine/South Africa/4/2003 (a vaccine strain recommended by the World Organisation for Animal Health) and A/equine/Ibaraki/1/2007 (a Japanese vaccine strain). Antibody titers against four North American Fc1 strains isolated in 2021–2022 were comparable to those against the homologous vaccine strains. These results suggest that current Fc1 vaccine strains are effective against North American strains from 2021–2022.

Original language	English
Article number	94
Journal	Archives of Virology
Volume	168
Issue number	3
DOIs	https://doi.org/10.1007/s00705-023-05720-x
State	Published - Mar 2023

Bibliographical note

Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.

Keywords

Equine influenza virus
Florida sublineage clade 1
Neutralization assay
Vaccine

ASJC Scopus subject areas

Virology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s00705-023-05720-x

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Nemoto, M., Reedy, S. E., Yano, T., Suzuki, K., Fukuda, S., Garvey, M., Kambayashi, Y., Bannai, H., Tsujimura, K., Yamanaka, T., Cullinane, A., & Chambers, T. M. (2023). Antigenic comparison of H3N8 equine influenza viruses belonging to Florida sublineage clade 1 between vaccine strains and North American strains isolated in 2021–2022. Archives of Virology, 168(3), Article 94. https://doi.org/10.1007/s00705-023-05720-x

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abstract = "Equine influenza virus strains of Florida sublineage clade 1 (Fc1) have been circulating in North America. In this study, virus neutralization assays were performed to evaluate antigenic differences between Fc1 vaccine strains and North American Fc1 strains isolated in 2021–2022, using equine antisera against A/equine/South Africa/4/2003 (a vaccine strain recommended by the World Organisation for Animal Health) and A/equine/Ibaraki/1/2007 (a Japanese vaccine strain). Antibody titers against four North American Fc1 strains isolated in 2021–2022 were comparable to those against the homologous vaccine strains. These results suggest that current Fc1 vaccine strains are effective against North American strains from 2021–2022.",

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Nemoto, M, Reedy, SE, Yano, T, Suzuki, K, Fukuda, S, Garvey, M, Kambayashi, Y, Bannai, H, Tsujimura, K, Yamanaka, T, Cullinane, A & Chambers, TM 2023, 'Antigenic comparison of H3N8 equine influenza viruses belonging to Florida sublineage clade 1 between vaccine strains and North American strains isolated in 2021–2022', Archives of Virology, vol. 168, no. 3, 94. https://doi.org/10.1007/s00705-023-05720-x

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AU - Nemoto, Manabu

AU - Reedy, Stephanie E.

AU - Yano, Takanori

AU - Suzuki, Kenya

AU - Fukuda, Shino

AU - Garvey, Marie

AU - Kambayashi, Yoshinori

AU - Bannai, Hiroshi

AU - Tsujimura, Koji

AU - Yamanaka, Takashi

AU - Cullinane, Ann

AU - Chambers, Thomas M.

PY - 2023/3

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N2 - Equine influenza virus strains of Florida sublineage clade 1 (Fc1) have been circulating in North America. In this study, virus neutralization assays were performed to evaluate antigenic differences between Fc1 vaccine strains and North American Fc1 strains isolated in 2021–2022, using equine antisera against A/equine/South Africa/4/2003 (a vaccine strain recommended by the World Organisation for Animal Health) and A/equine/Ibaraki/1/2007 (a Japanese vaccine strain). Antibody titers against four North American Fc1 strains isolated in 2021–2022 were comparable to those against the homologous vaccine strains. These results suggest that current Fc1 vaccine strains are effective against North American strains from 2021–2022.

AB - Equine influenza virus strains of Florida sublineage clade 1 (Fc1) have been circulating in North America. In this study, virus neutralization assays were performed to evaluate antigenic differences between Fc1 vaccine strains and North American Fc1 strains isolated in 2021–2022, using equine antisera against A/equine/South Africa/4/2003 (a vaccine strain recommended by the World Organisation for Animal Health) and A/equine/Ibaraki/1/2007 (a Japanese vaccine strain). Antibody titers against four North American Fc1 strains isolated in 2021–2022 were comparable to those against the homologous vaccine strains. These results suggest that current Fc1 vaccine strains are effective against North American strains from 2021–2022.

KW - Equine influenza virus

KW - Florida sublineage clade 1

KW - Neutralization assay

KW - Vaccine

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Antigenic comparison of H3N8 equine influenza viruses belonging to Florida sublineage clade 1 between vaccine strains and North American strains isolated in 2021–2022

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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