Patent ID: 9592286
Date: 2017-03-14
CPC Classifications: A61K,A61P,C12N

Claim:
1. A vaccine composition, comprising a Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) vaccine and a second porcine virus vaccine, wherein the second porcine virus vaccine is selected from the group consisting of Classical Swine Fever Virus (CSFV) vaccine and Pseudorabies Virus (PRV) vaccine, and wherein the PRRSV vaccine comprises an attenuated PRRSV comprising an NSp2 nucleotide sequence encoded by a DNA sequence, wherein the DNA sequence, when compared with SEQ ID NO: 4, lacks a DNA fragment which comprises at least 50 contiguous nucleotides within SEQ. ID NO: 8, wherein the PRRSV vaccine and the second vaccine are substantially free from immuno-inhibition against each other.