Comparison of Structure and Sequence of Influenza B/Yamagata and B/Beijing Neuraminidases Shows a Conserved "Head" but Much Greater Variability in the "Stalk" and NB Protein

Comparison of Structure and Sequence of Influenza B/Yamagata and B/Beijing Neuraminidases Shows a Conserved "Head" but Much Greater Variability in the "Stalk" and NB Protein