Personally, I have a friend in the CDC who admitted off the record to human to human spreading about 10 months ago. They aren't keen to admit it (so they haven't yet) as it means we are possibly only a few mutations away from something that could be like Captain trips. While tracking bird flu cases they found it wasn't following normal migration patterns. They looked into it and discovered human to human cases and transport patterns.
Although, my friend did say that a highly contagious, highly fatale virus is astonishingly rare. The most likely mutation would do something like a normal flu. As the human to human spread article is out there I'm comfortable putting this out in the public domain (at least on this forum).
That news was enough for my normally relaxed father to stock up on food and water to avoid having to go to the grocery/public areas.
Myself, I'm not too worried about it. I suspect that if anything is released within the next 3 years it will be an engineered virus (to blame the economic crash on). That is just a guess though (based on current global trends to sacrifice one's own people).
Exercise, eat well, stay healthy and most of all savor every day!
-NIM