Patent ID: 9708585
Date: 2017-07-18
CPC Classifications: A61K,A61P,C12N

Claim:
1. A reassortant influenza A virus comprising an HA segment, an NA segment and backbone segments PA, PB1, PB2, NP, NS and M, wherein the backbone segments are from two donor strains, wherein the PB1 segment is from the A/California/07/09 influenza strain and all other backbone segments are from the PR8-X influenza strain, further wherein the PA segment has the sequence of SEQ ID NO: 1, the PB2 segment has the sequence of SEQ ID NO: 3, the NP segment has the sequence of SEQ ID NO: 4, the M segment has the sequence of SEQ ID NO: 5, and the NS segment has the sequence of SEQ ID NO: 6.