Short communication: a modified Vaccinia virus Ankara-based Porcine circovirus 2 vaccine elicits strong antibody response upon prime-boost homologous immunization in a preclinical model.

Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]
Danielle Soares de Oliveira Daian E SilvaFlávio Guimarães Da Fonseca

Abstract

Porcine circovirus 2 (PCV2) infections are related to a number of syndromes and clinical manifestations, generally known as Porcine circovirus-associated diseases, which are related to losses in the swine industry. There are commercially available vaccines and new vaccines being tested, however, persistency of the PCV2 as an important pig pathogen, and the growing number of affected farms in different countries have suggested that there is room for vaccine improvement. In this study, we describe the construction and testing of a recombinant live vaccine based on a modified Vaccinia virus Ankara (MVA) vector expressing the PCV2b capsid protein (CAP). Using a two-dose homologous vaccination regimen, in mice, we demonstrated that the vaccine induced high titers of anti-PCV2 antibodies. The vaccine is stable upon lyophilization, and, together with the good immunogenicity potential observed, the results support further evaluation of the MVA-CAP vaccine in the target species.

References

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Methods Mentioned

BETA
transgenic
flow cytometry
enzyme-linked immunosorbent assay
ELISA

Software Mentioned

GraphPad Prism

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