Figure 1From: Highly conserved antigenic epitope regions of hemagglutinin and neuraminidase genes between 2009 H1N1 and seasonal H1N1 influenza: vaccine considerationsHA tetramer decorated with two epitope regions. a. Side view; b. Vertical view. AA22-47 and AA341-363 are IGYHANNSTDTVDTVLEKNVTVTHSV in red and IQSRGLFGAIAGFIEGGWTGMVD in magenta.Back to article page