Before Fauci got 'distracted' by Covid he was working on a flu vaccine that disrupts the nucleus of a flu virus and not just its receptors that look more stubby than the corona virus.
He was hoping to create that lifetime vaccine that Steve speculates.

The flu virus may have billions of years of an evolutionary head start over Fauci but I wish him luck.

Life and near life is found in the newest 1965 Cerxes volcanic island trapped deep within the magma that the volcano deposited.
Little single celled life feeds on the rock/heat at three times the boiling point of water. This gives some push to the pan spermia theory in my way of thinking. The evolution of life could have begun billions of years before Earth even formed. Time plus evolution can make a flu virus one tough little tenacious bug.