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Fig. 6 | Virology Journal

Fig. 6

From: Construction of a recombinant duck enteritis virus (DEV) expressing hemagglutinin of H5N1 avian influenza virus based on an infectious clone of DEV vaccine strain and evaluation of its efficacy in ducks and chickens

Fig. 6

Protection efficiency of DEV-H5(UL55) against duck plague. A total of 40 commercial ducks were randomly divided into four groups. Ducks in groups A-DP(5D) (Column DEV-H5(UL55)) and B-DP(5D) (Column DEV vaccine) were inoculated intramuscularly with 1 × 106 TCID50 DEV-H5(UL55) virus and DEV vaccine(NJTB), respectively. Groups C-DP(5D) (challenge control) and D-DP(5D) (placebo control) were inoculated intramuscularly with 0.2 ml of PBS as controls. All of the ducks in groups A-DP(5D), B-DP(5D), and C-DP(5D) were challenged with virulent DEV at a dose of 100 LD50 and monitored daily for 14 days. The survival rates of these four groups at the end of the 14 days are shown here

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Virology Journal

ISSN: 1743-422X