> At the extreme if it killed 100% of the people it infected then everyone would've locked down borders immediately and taken it very seriously. Depends on how

> At the extreme if it killed 100% of the people it infected then everyone would've locked down borders immediately and taken it very seriously. Depends on how fast it kills too. Something like airborne aids that somehow didn't have respiratory symptoms would be the most terrifying scenario because it would spread world wide before anyone noticed.