A new study has found that a
novel avian - origin H7N9
influenza A
virus, which has recently emerged in humans, attaches moderately or abundantly to the epithelium of both the upper and lower respiratory tracts.
At the outset, no one could predict that the
novel H1N1
virus — a recombination of human, pig, and
avian influenza genes — would turn out to be more wimp than monster.