Figure 2.

Optimization of trypsin activity used for the infection of CR.pIX cells with LAIV strains A/Singapore (A) and B/Vienna (B). Tested trypsin activities were 1 × 10-6 units/cell (green), 5 × 10-6 units/cell (orange) and 10 × 10-6 units/cell (black). Cells were infected in T-flasks at a CCI of 2 × 106 cells/mL without applying a medium exchange.

Lohr et al. BMC Biotechnology 2012 12:79   doi:10.1186/1472-6750-12-79
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