Figure 5
From: Plaque assay for human coronavirus NL63 using human colon carcinoma cells
Effect of plaque purification. A, plaque assay with Avicel overlay on purified virus stock CaCo-2 PP. B, plaque assay on non-purified virus stock LLC-MK2 NP. C, viral RNA copies per mL of supernatant (left) and plaque forming units per mL of supernatant (right) for CaCo-2 PP and LLC-MK2 NP virus stocks (log scale). Error bars show ranges of three independent experiments.