The production of live attenuated influenza A strains by recombination with A/Okuda/57 (H2N2).
D006801:Humans; D053121:Influenza A Virus, H2N2 Subtype; D009980:Influenza A virus / Q000276:immunology*; D007252:Influenza Vaccines / Q000009:adverse effects; D009297:Nasal Mucosa / Q000382:microbiology; D009975:Orthomyxoviridae / Q000276:immunology*; D011995:Recombination, Genetic; D014613:Vaccines, Attenuated
D007252:Influenza Vaccines; D014613:Vaccines, Attenuated