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Efficacy and synergy of live-attenuated and inactivated influenza vaccines in young chickens

Fig 2

Serum HI antibody response in chickens vaccinated at 1 day of age.

(A) Homologous (TK/OR/71, H7N3) HI titers. (B) Heterologous (CK/NJ/02(H7N2)) HI titers. Sera were collected from birds vaccinated at 1 day of age at 14 days post-vaccination. Individual and median HI titers are indicated with symbols and horizontal lines, respectively. Different letters inside the plot indicate statistical significance among groups (p<0.05).

Fig 2

doi: https://doi.org/10.1371/journal.pone.0195285.g002