Figure 1From: Porcine reproductive and respiratory syndrome virus (PRRSV) infection spreads by cell-to-cell transfer in cultured MARC-145 cells, is dependent on an intact cytoskeleton, and is suppressed by drug-targeting of cell permissiveness to virus infectionPRRSV replication dynamics in MARC-145 cells by flow cytometry. A. Control (uninfected) cells; B. 20 h p.i. with PRRSV; C. 72 h p.i. with PRRSV; D. 96 h p.i. with PRRSV. The percentage of PRRSV antigen-positive cells is shown in the lower right quadrant for each graph.Back to article page