The means of N.A titers on BHK cells and FcγR-expressing BHK cells from serum samples in the pre-dengue season group (labeled as Non patient 1 in Additional file 1: Figures S1A, S1B) were 4.59 ± 0.37 and 3.41 ± 0.29 for DENV-1; 4.29 ± 0.33 and 3.2 ± 0.23 for DENV-2; 3.06 ± 0.23 and 2.5 ± 0.11 for DENV-3; 2.35 ± 0.03 and 2.32 ± 0 for DENV-4. The gene discussed is FCGR2A; the disease is dengue disease.