The first, 5 days of infection showed peak levels of IL-1RA, MCP-1, MIP-1β and TNF-α; the second 5 days had peak levels of GM-CSF, IL-1β, IL-6, IL-8, IL-9, IP-10 and MIP-1α; VEGF peaked at 11–15 days [33]. This evidence concerns the gene IL6 and infection.