Dengue NSI protein can be an ideal target for early detection of dengue virus infection. The aim of the study is to label rabbit anti-NSI antibody with HRP, so that it can be used for detection of NSI protein. The design of this study is laboratory experimental. Anti-NSI IgG-contained rabbit serum was purified with column chromatography (Sephadex G-200). The result of purification was labeled w…