Figure 4.
Time-of-addition assay. Confluent monolayers of Vero cells were infected, in triplicate, with PPRV or NDV at MOI of 5, washed six times with PBS and fresh medium with either 0.5 μM Thapsigargin or 0.05% DMSO were added at indicated times. Supernatants were collected at 12 (NDV) or 48 hpi (PPRV) and quantified by plaque assay. Time-of-addition assay for NDV (A) and PPRV (B) is shown.