There is no more need to be afraid of an Influenza A pandemic than there is of EFATO. As with all risk mitigation there are well recognised methods available.
We do know however that an Influenza A pandemic has a probability of 1.
As with all risk management, we simply ensure we are aware of all the ssues get as much valid gen as we can, weigh up probability versus possible loss should any of a number of permutations come to pass and then prepare ourselves appropriately.
That level of preparation will decide the outcome should any potential risk be realised. For many the perceived risk will not be worth worrying about. For others it may be more worthy of their attnetion. It is for each to decide and then bear the cost of that decision.
Cheers,
Brad