Fig. 2From: Efficacy of an inactivated bivalent vaccine against the prevalent strains of Newcastle disease and H9N2 avian influenzaAntibody dynamics of vaccinated chickens. Three-week-old chickens were immunized by subcutaneous injection with the developed inactivated vaccine (NDV, aSG10 and H9N2, G). The mean HI titers for sera collected weekly for 15 weeks post-vaccination are shownBack to article page