In particular, at 14 days post-infection the median CCL2 secretion in uninfected cells was 8,410.9 ± 1,027.5 (SE) pg/ml, whereas it increased to 18,982.9 ± 2,102.1 (SE) pg/ml (p < 0.001) upon infection with HIV-1. The gene discussed is CCL2; the disease is infection.