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Review Article

Advances in novel vaccines for foot and mouth disease: focus on recombinant empty capsids

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Pages 306-320 | Received 01 Mar 2017, Accepted 24 Oct 2018, Published online: 17 Jan 2019
 

Abstract

Foot and mouth disease (FMD) is a highly contagious disease of cloven-hoofed animals, which causes severe economic losses in the livestock industry. Currently available vaccines are based on inactivated FMD virus (FMDV). Although inactivated virus vaccines have proved to be effective in FMD control, they have a number of disadvantages, including the need for high bio-containment production facilities and the lack of induction of immunological memory. Novel FMD vaccines based on the use of recombinant empty capsids have shown promising results. These recombinant empty capsids are attractive candidates because they avoid the use of virus in the production facilities but conserve its complete repertoire of conformational epitopes. However, many of these recombinant empty capsids require time-consuming procedures that are difficult to scale up. Achieving production of a novel and efficient FMD vaccine requires not only immunogenic antigens, but also industrially relevant processes. This review intends to summarize and compare the different strategies already published for the production of FMDV recombinant empty capsids, focusing on large-scale production.

Acknowledgments

We thank Dr. Ann Meyers for critical reading of the manuscript.

Disclosure statement

The 293-6E cell line and pTT5 vector can be obtained under license from the NRC.

Additional information

Funding

This work was supported by grants PID-2013–0022 from Agencia Nacional de Promoción Científica y Tecnológica, Argentina and PNSA-1115052 from Instituto Nacional de Tecnología Agropecuaria, Argentina. This is NRC publication # NRC-HHT_53374.

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