FIELD: medicine.
SUBSTANCE: nucleic acid contains a gene segment of a influenza virus and a bacteriophage polymerase promoter or a complementary chain of said nucleic acid. What is described is a composition containing a cell or a material produced of a cell according to this invention, or a virus, or a material produced of a viral particle according to this invention. The invention can be used in medicine.
EFFECT: nucleic acid allows producing replicative viral particles without the use of an assistant virus.
26 cl, 6 dwg, 2 ex
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