期刊
VACCINE
卷 32, 期 16, 页码 1882-1889出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.vaccine.2014.01.067
关键词
Foot-and-mouth disease; Inactivated vaccine; O-SEA topotype; Heterologous challenge; Homologous challenge
资金
- QIA's National Animal Disease Research Project
- Animal and Plant Quarantine Agency, Anyang, Gyeonggi, Republic of Korea
Foot-and-mouth disease (FMD) is a highly contagious infectious disease, and the use of vaccines is known to be effective for its prevention. In 2010/2011, there was an epidemic of the South East Asia (SEA) topotype in East Asian countries. We adapted the SEA topotype virus isolated in November 2010 in Korea in cells to analyze the characteristics of the virus and evaluate its possibility as a vaccine. After cell culture adaptation, the FMD virus particle 146S was purified to develop an inactivated oil vaccine for SEA or other topotypes. To measure its immunogenicity, pigs were inoculated with the experimental vaccine at different concentrations of the antigen. The results indicated that the groups immunized with at least 7.5 mu g antigen were protected from homologous challenge. The immunized pigs were also protected against heterologous virus (ME-SA topotype) challenge. The genetic variations between the two field isolates and the adapted vaccine strains were identified in six amino acids by complete genome sequencing. (C) 2014 Elsevier Ltd. All rights reserved.
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