Figure 6From: Efficient strategy for constructing duck enteritis virus-based live attenuated vaccine against homologous and heterologous H5N1 avian influenza virus and duck enteritis virus infection Serological response against homologous and heterologous avian influenza virus strains in duck immunized with C-KCE-HA. Ducks were inoculated subcutaneously with 105 PFU of C-KCE-HA. Sera were collected from ducks weekly for HI antibody and NT antibody detection. (A). HI responses were assessed against the homologous XN/07 virus. (B). HI responses were assessed against the heterologous HM/06 virus. (C). NT responses were assessed against the homologous XN/07 virus. (D). NT responses were assessed against the heterologous HM/06 virus. Dotted lines indicate the thresholds for a positive response.Back to article page