The issue id it's SLIGHTLY more lethal than the regular strains, but mutates MUCH faster. Outbreak, the movie, may be a far cry, but that's the thing. One mutation made it go airborne. Same here, only increasing lethality.
"Jenaveve took everything from me.
Her ambitions to dominate the universe are terrifying,
Evil beyond imagining.
The one whose power even the creator fears,
Will stop her.
Even if I have to destroy the universe to do it!"
Tyrong Kojy/Jenaveve by Nicholas Rivest