Figure 1From: Serum strain-specific or cross-reactive neuraminidase inhibiting antibodies against pandemic А/California/07/2009(H1N1) influenza in healthy volunteers Serum antibody titers against H1N1/1999 and H1N1/2009pdm in the fall of 2010. Distribution of hemagglutination-inhibition and neuraminidase-inhibition antibody titers against seasonal and pandemic A/H1N1 influenza viruses in serum samples collected from 163 volunteers in the fall of 2010.Back to article page