The recombinant HN protein ( rHN ) of Newcastle disease virus ( NDV ), expressed by T4 phage , were used to develop an enzyme-linked immunosorbent assay ( rHN-ELISA ) to detect antibody titers of Newcastle disease ( ND ) .
用T4噬菌体表达的重组新城疫病毒HN蛋白（rHN）为包被抗原，建立新城疫抗体检测的酶联免疫吸附实验（rHN-ELISA）。
rhn