Clinical and Experimental Vaccine Research

The Korean Vaccine Society (대한백신학회)
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Genetic identification and serological evaluation of commercial inactivated foot-and-mouth disease virus vaccine in pigs

  • Je, Sang H. (College of Veterinary Medicine, Konkuk University) ;
  • Kwon, Taeyong (College of Veterinary Medicine, Konkuk University) ;
  • Yoo, Sung J. (College of Veterinary Medicine, Konkuk University) ;
  • Lee, Dong-Uk (College of Veterinary Medicine, Konkuk University) ;
  • Seo, Sang won (Hipra Korea Inc.) ;
  • Byun, Jeong J. (College of Veterinary Medicine, Konkuk University) ;
  • Shin, Jeong Y. (College of Veterinary Medicine, Konkuk University) ;
  • Lyoo, Young S. (College of Veterinary Medicine, Konkuk University)
  • Received : 2018.03.09
  • Accepted : 2018.06.18
  • Published : 2018.07.31
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Abstract

Vaccination is considered a frequently used tool to prevent and control foot-and-mouth disease (FMD). However, the effectiveness of conventional FMD virus (FMDV) vaccines in pigs has been controversial because the massive prophylactic vaccination could not elicit proper immune response nor prevent the broad spread of FMD outbreak, mainly in pig farms, in South Korea during outbreaks of 2014. In addition, there has been little information on the efficacy of inactivated, high potency, multivalent, oil-based FMDV vaccine in pigs, because an evaluation of FMDV vaccines had been mainly carried out using cattle. In this study, we evaluated the genetic identification of commercial inactivated FMDV vaccine and monitored the immune responses in pigs under the field condition. Results implied that it contained three different serotypes with a high level of antigen payload. However, serological results showed low mean percentage of inhibition, and positive rate reached its peak at 6-week post-vaccination, indicating current FMDV vaccine need to improve for a prophylactic vaccination policy in pigs. Therefore, there is an imperative need to develop FMDV vaccine that can provide rapid and long-lasting protective immunity in pigs.

Keywords

References

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