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Figure 1.


Decrease of virus yield in BHK-21 cells treated with siRNA-expressing plasmids. Cells transiently transfected with either control plasmids or specific siRNA-expressing plasmids were infected with 100 TCID50 of FMDV HKN/2002 (A), FMDV CHA/99 (B), FMDV YNBS/58 (C) and FMDV Jiangsu/2005 (D) per 0.1 mL. Culture supernatants were collected at different times, and the virus titer (TCID50) was determined three times on BHK-21 cells. Error bars indicate standard deviations.

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