EF041500   Influenza A virus (A/duck/South Africa/1233A/2004(H4N8)) segment 2 polymerase PB1 (PB1) and PB1-F2 protein (PB1-F2) genes, complete cds.   [Influenza A virus (A/duck/South Africa/1233A/2004(H4N8)) | 406338.9]