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KMID : 0380420230470010019
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Journal of Prventive Veterinary Medicine
2023 Volume.47 No. 1 p.19 ~ p.23
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Serological survey of foot and mouth disease virus structural protein at cattle breeding farms in the Republic of Korea, 2020~2021
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Han You-Jin
Seo Hyun-Ji
Park Mi-Young
Kim Tae-Woon
Kim Jae-Myoung
Choi Eun-Jin
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Abstract
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The Republic of Korea has implemented an obligatory vaccination on major livestock breeds to prevent and eradicate nationwide foot and mouth disease (FMD) since the end of 2010. The government has executed massive serological survey to check the immune level of various herds after vaccination, and seropositive rates against FMD virus (FMDV) structural proteins can be measured to assess FMD immunity level. The purpose of this study is to investigate the FMDV serological level of every cattle breeding farm in the country and to determine whether there is a significant difference between groups classified by time, age, and management authority. A total of 5,781 serum samples was collected in 18 cattle breeding farms from 2020 to 2021, and the seropositive rates were measured using PrioCHECK FMDV Type O ELISA kit. Firstly, the cattle breeding farms were classified by which they are managed: the central government, the local government, and the private agency. Every management authority had a seropositive rate of 99.5% or higher. Secondly, the samples were divided into 6 to 12 months old, 12 to 24 months old, and 24 months or more. The 6 to 12 months old group in 2020 showed a significantly low seropositive rate of 98.1%, but it was improved by implementing the enhanced vaccination policy from 2021 to 100%. In summary, there are considerably high seropositive rates including all groups with time, age, and by which they are managed, which means the FMD vaccination in cattle breeding farms is well-managed.
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KEYWORD
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Foot and mouth disease, Herd immunity, Vaccine, Cattle breeding farms, Seropositive rate
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