The levels of IL-1ra, IL-4, IL-10, IL-13, IFNγ, MCP-1, PDGF-BB, bFGF and VEGF released from the apical surface of ALI Calu-3 did not differ following mock—or RSV-A2 infection at 7 days pi (data not shown). The gene discussed is CCL2; the disease is infection.