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Fig. 2 | Virology Journal

Fig. 2

From: Ducks induce rapid and robust antibody responses than chickens at early time after intravenous infection with H9N2 avian influenza virus

Fig. 2

Antibody response in chickens and ducks intravenously infected with inactivated H9N2 virus. a and c An HI assay was used to test the serum samples of the birds at different time points post-infection as indicated. b and d A blocking ELISA was used to test the serum samples of birds at different time points post-infection as indicated;**, p < 0.01. a and b present the samples collected at the indicated time points in the same infection experiment. c and d represent the samples collected at different time points post-infection as indicated in another duplicate independent infection experiment

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