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The viral infectivity of supernatant DENV was determined by TCID50 method. The cells were infected with DENV at indicated MOI for 1 h; the media were replaced with complete media and cultured for 2 days. Dengue E protein was assayed by A cell-based flavivirus immunodetection assay. The values represent average from 3 independent experiments (n = 3). p values were calculated using Student's t test.
