Analysis of viral replication at 24 and 48 h post infection revealed a trend for increased viral RNA at 24 h (Figure 1A) and, by 48 h, there was an increase in release of infectious viral particles in the presence of either 10 or 25 ng/ml TGF-β2 (7 and 4-fold increase, respectively; Figure 1B). This evidence concerns the gene TGFB2 and infection.