Patent ID: 9669085
Date: 2017-06-06
CPC Classifications: A61K,A61P,C12N

Claim:
1. A method of eliciting in a suidae animal a protective immune response against porcine reproductive and respiratory syndrome virus (PRRSV), said method consisting of transdermally administering to the suidae animal as a weaner by liquid jet needle-free injector a single dose of a vaccine; said vaccine comprising an effective amount of a non-viral DNA plasmid vector; said non-viral DNA plasmid vector encoding, and when so administered there is expression in vivo in the suidae animal of, a single truncated PRRSV ORF7 protein, consisting of the sequence as set forth in SEQ ID NO: 4 in an effective amount to provide the suidae animal protection from subsequent challenge with a virulent PRRSV, thereby eliciting the protective immune response.