DYNLRB1 and infection: As shown in Fig. 2d, although BLP showed no significant effect on the antibody response of ALV-infected hosts to the AIV inactivated vaccine (P > 0.05) (1d - 42d), it was obvious that the BLP significantly improved the antibody response of chickens in Mock BLP group to inactivated AIV vaccine, compared with the birds in Infection Control group (P < 0.05) (14d - 42d), and also compared with those in Mock Control group (P < 0.05) (28d - 42d).