KC492292   Influenza A virus (A/American black duck/Newfoundland/836/2008(H2N4)) segment 2 polymerase PB1 (PB1) and PB1-F2 protein (PB1-F2) genes, complete cds.   [Influenza A virus (A/American black duck/Newfoundland/836/2008(H2N4)) | 1283768.5]