In contrast, the means of N.A titers as determined by BHK cells and FcγR-expressing BHK cells using serum samples from dengue patients (labeled as Patient in Additional file 1: Figures S1A, S1B) were 4.47 ± 0.36 and 3.17 ± 0.35 for DENV-1; 4.67 ± 0.2 and 3.12 ± 0.22 for DENV-2; 3.22 ± 0.31 and 2.67 ± 0.21 for DENV-3; 2.62 ± 0.15 and 2.32 ± 0 for DENV-4. This evidence concerns the gene FCGR2A and dengue disease.