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Abstract

Foot-and-mouth disease (FMD) is one of the most highly contagious animal diseases. In an effort to overcome the drawbacks of the currently used inactivated foot-and-mouth disease virus vaccine, a novel recombinant protein carrying foot-and-mouth disease virus VP1 GH loop epitope linked to vesicular stomatitis virus glycoprotein was expressed in a baculovirus system. Its antigenicity was confirmed with ELISA using monoclonal antibody against foot-and-mouth disease virus. Twice immunizations one month apart in field pigs resulted in a significant antibody increase compared to the glutathione S-transferase carrier containing the same epitope and the commercial vaccine. To my knowledge, this is the first report that the recombinant protein vaccine was superior to the current vaccine. Although further studies are required to examine their immunogenicity in a large number of animals, this study sheds light on the development of a novel recombinant protein vaccine that could be easily produced in a general laboratory as an alternative to the current FMD vaccine, which requires a biosafety level 3 containment facility for vaccine production.

Authors

Lee, Hyang-Sim;  Park, Sun-Young;  Kim, Ah-Young;  Lee, Sang-Oh;  Kim, Jae-Seok;  Kim, Hyejin;  Youn, Hee-Jeong;  Ko, Young-Joon

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