| 摘要 |
Described is a process for producing poliovirus, the process comprising: a) providing a serum-free suspension culture of cells, which are primary human retina cells that have been immortalized by expression of adenovirus E1 sequences, b) infecting the cells with poliovirus, at a cell density of between 2×106 cells/ml and 150×106 cells/ml, and c) harvesting poliovirus at a time of between 12 and 48 hours after infection.
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