Figure 7From: Astragalus polysaccharide enhances immunity and inhibits H9N2 avian influenza virus in vitro and in vivoAntibody titers of chickens at 7 and 14 d post H9N2 AVI infection for different Astragalus polysaccharide concentrations. Antibody titers were greatest for chickens in the 5mg/kg group at seven days post H9N2 infection.Back to article page