How Scared Do You Need to Be About This Kind of Thing?

The chances that if something like this were to happen, that it could spread worldwide extremely quickly are very, very high. So we don't have a vaccine for H5N1 for humans. We do have a vaccines for domestic birds but that's sort of an imperfect system as well. Go ahead and get your seasonal flu shot, wash your hands and just be a little bit afraid, I guess.