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ISSN : 2287-7991(Print)
ISSN : 2287-8009(Online)
Journal of the Preventive Veterinary Medicine Vol.44 No.3 pp.132-135
DOI : https://doi.org/10.13041/jpvm.2020.44.3.132

Antibody responses after vaccination against equine influenza virus in the Republic of Korea in 2019

In-Ohk Ouh1,2#,Min Ji Kim1#,Hyeonhae Choi1,Hyoung seok Yang3,Sang Kyu Lee4,Seo Young Moon1,Suyeong Yun1,Bang-hun Hyun1,Soo dong Cho1,Choi-Kyu Park2†,Yoon-Hee Lee1†
1Viral Disease Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Gyeongsangbuk-do, Republic of Korea
2College of Veterinary Medicine & Animal Disease Intervention Center, Kyungpook National University, Daegu 41566, Republic of Korea
3Veterinary Research Institute, Jeju 63344, Jeju Special Self Governing Province, Republic of Korea
4Equine Epidemic Control & Quarantine Section, Korea Racing Authority, Gwacheon 13822, Gyeonggi-do, Republic of Korea
# These authors equally contributed.
Corresponding Authors.
Choi-Kyu Park, Tel: +82-53-950-5973, Fax: +82-53-950-5955, E-mail: parkck@knu.ac.kr
Yoon-Hee Lee, Tel: +82-54-912-0801, Fax: +82-54-912-0812, E-mail: lyhee74@korea.kr

Abstract

In this study, antibody responses after vaccination against equine influenza were investigated among 1,591 horses in the Republic of Korea using the hemagglutination inhibition (HI) test. Equine influenza has not occurred since 2011 and a commercial vaccine against H3N8 has been used. The equine influenza virus, A/equine/South Africa/4/03 (H3N8), was used as the antigen in the HI assay. The mean seropositive rate was 90.5% in 2019. Except for stallion whose seropositive rate was 78.5%, all seropositive rates of other horse types were over 90%. Regionally, except for Gangwon-do and Jeju-do whose seropositive rates were 89.0% and 87.1%, all seropositive rates in other provinces were over 90%. In the future, more through vaccination against equine influenza needs to be done based on this investigation result.

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