Surely. It may kill bitcoin to be real. Especially if the entire humanity will be wiped out by creepy walkers. The zombie apocalypse is one of the greatest threats that the world can face and bitcoin might lose one of its fundamentals to be active, we the users.

Yes, you are right virus can't affect the bitcoins price movement but the panic and chaos it will cause specially this kind of virus that is a threat to us people will try their best to preserve any wealth they have specially those in most affected area of the said virus and that's where bitcoin comes in. Bitcoin is one of the best ways to preserve your money because it's very accessible to anyone and easy to use and has a hold on compared to gold. By this bitcoin will have a high demand and will result in bitcoins price pumping up. That is how this kind of dilemma are somewhat connected to bitcoins price.