Abstract
Newcastle disease virus (NDV) is an economically important pathogen in the poultry industry worldwide. Recovery of infectious NDV from cDNA using reverse genetics has made it possible to manipulate the genome of NDV. This has greatly contributed to our understanding of the molecular biology and pathogenesis of NDV. Furthermore, NDV has modular genome and accommodates insertion of a foreign gene as a transcriptional unit, thus enabling NDV as a vaccine vector against diseases of humans and animals. Avirulent NDV strains (e.g., LaSota and B1) have been commonly used as vaccine vectors. In this protocol, we have described reverse genetics of NDV to be used as a vaccine vector by exemplifying the recovery of NDV vectored avian influenza virus vaccine. Specifically, cloning and recovery of NDV expressing the hemagglutinin protein of highly pathogenic influenza virus were explained. © 2018 by John Wiley & Sons, Inc.
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