Kate, this needs to be put into context, sure there has been some local isolated unrest, and, birds have died through "bird flu", also I believe about 100 people WORLDWIDE have died of the virus. I'll stand to be corrected; the virus strain has only involved creature to human and no reported instances of the virus mutating thus enabling human to human infection. In those instances where human infection has happened the people have lived in very close proximity to the creatures.
If we Europeans believed 1% of the stories that come out of North America we would never visit, what with the chance of murder, mugging, government conspiracy, alien abduction, religious group suicide etc.
As you know journalists cannot resist the chance of selling a story and will stretch the facts to achieve this. Use some common sense; its not stopping us from travelling and neither should it stop you.