This is information has been made public, I am leaving the figures out. Science 22 June 2012: Vol. 336 no. 6088 pp. 1541-1547 DOI: 10.1126/science.1222526 Abstract Avian A/H5N1 influenza viruses pose a pandemic threat. As few as five amino acid substitutions, or four with reassortment, might be sufficient for mammal-to-mammal transmission through respiratory droplets.…
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