Figure 5From: Efficient strategy for constructing duck enteritis virus-based live attenuated vaccine against homologous and heterologous H5N1 avian influenza virus and duck enteritis virus infection Conferred protection from immunization of duck with C-KCE-HA vaccine against challenge with virulent DEV challenge. Ducks were inoculated subcutaneously with 105 PFU of C-KCE-HA, 105 PFU of C-KCE or with PBS as a control, then intramuscularly challenged with 100-fold DLD50 HB/10 at 3Â days (A), 1Â week (B), 2Â weeks (C), or 12Â weeks (D) post-vaccination (pv), respectively. Ducks were monitored daily for 2Â weeks after challenge.Back to article page