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

被引：0
作者：
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
机构：
[1] Japan Racing Association,Equine Research Institute
[2] University of Kentucky,Department of Veterinary Science, Gluck Equine Research Center
[3] Ministry of Agriculture,Animal Quarantine Service
[4] Forestry and Fisheries,Virology Unit
[5] Irish Equine Centre,undefined
来源：
Archives of Virology | 2023年 / 168卷
关键词：
Equine influenza virus; Florida sublineage clade 1; Neutralization assay; Vaccine;
D O I：
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摘要：
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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