Considering the above implications, this study aimed to detect the anti-SARS-CoV-2 N-protein antibodies in dengue endemic populations of Bangladesh and to determine whether previous dengue infection affects the levels of anti-SARS-CoV-2 N-protein IgA and IgG measured by Novatec enzyme-based immunoabsorbent assay (Novalisa). Here, CD79A is linked to dengue disease.