Influence of TNFα and/or PTX on HCMV replication in human embryonal lung fibroblasts. Monolayers of Fi 301 cells were infected with either AD169 (A) or C563 (B). For plaque assay cells were incubated for 10 days at 37°C with one medium change at day 3. The graph represents data of one representative experiment that has been repeated four times.