GU052228   Influenza A virus (A/blackhead gull/Astrakhan/65/1983(H13N6)) segment 1 polymerase PB2 (PB2) gene, partial cds.   [Influenza A virus (A/black-headed gull/Astrakhan/65/1983(H13N6)) A/blackhead gull/Astrakhan/65/1983 | 680699.11]