Data for Figs 1 and 4 (Table 1): Titers (PFU/ml) of intermediate stocks grown in Vero cells inoculated with MOI=0.01 with either recovered transfection supernatants or wild type stock viruses. Titers
MDCK cells were infected at MOI 0.05 with the indicated viruses. Supernatants were collected at 1, 8, 24 and 48 hours post infection and viral titers were quantified by TCID50. Images show the TCID50