The increased MCP-1 levels were statistically significant at days 4, 6 and 8 post-infection for all three isolates (p≤0.0001 for DENV-1 0111/2011 and DENV-2 0126/2010 and p≤0.05 for DENV-4 BEL 83791). Here, CCL2 is linked to infection.