EF633438   Influenza A virus (A/Leningrad/134/47/ts+18/1957(H2N2)) nonstructural protein 2 (NS2) gene, partial cds; and nonstructural protein 1 (NS1) gene, complete cds.   [Influenza A virus (A/Leningrad/134/47/ts+18/1957(H2N2)) A/Leningrad/134/47/ts+18/1957 | 447527.3]