Efficient generation and growth of influenza virus A/PR/8/34 from eight cDNA fragments.


A reverse genetics system for the generation of influenza virus A/PR/8/34 (NIBSC vaccine strain) from plasmid DNA was developed. Upon transfection of eight bidirectional transcription plasmids encoding the gene segments of A/PR/8/34 into 293T cells, virus titers in the supernatant were about 10(4) TCID50/ml. The production of A/PR/8/34 in 293T cells was… (More)


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