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Survival rates of chickens were observed from day (D) 1 to 7 days postchallenge with vvIBDV. Survival rates were calculated by dividing the number of chickens that survived by the total number of chickens per group (n = 8). (
) PBS; (
) Negative control; (
) pPG612‐VP2/LP; (
) pPG612‐T7g10‐VP2/LP. [Colour figure can be viewed at http://wileyonlinelibrary.com]
