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Figure 1 | BMC Biotechnology

Figure 1

From: Live attenuated influenza viruses produced in a suspension process with avian AGE1.CR.pIX cells

Figure 1

TCID 50 titers (open symbols) and HA yields (closed symbols) from infections performed with different medium exchange strategies. CR.pIX cells were infected with influenza strain A/PR/8/34 in shaker flasks at a CCI of 2 × 106 cells/mL and 1 × 10-6 units trypsin per cell. Three strategies were performed: infection without medium exchange (■, black), after a medium exchange (▲, cyan) and after the exchange of 50% of the medium (, purple). Error bars indicate standard deviation of three independent cultures.

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