What is actually concerning about this, is the mutation (no tin foil hats please - nothing to stress, but something one should be aware of). 

Viruses mutate & evolve at a relatively fast rate, & do jump species. Normally not a problem between wild animals & humans due to limited contact & differing physiologies (both barriers). Becomes easier between organisms that are more closely related, (wild to domestic birds), or with close proximity (domestic birds to pigs in same yard). Now things start to get interesting. Pig & human physiology fairly close in many ways. So pig farmers with chickens. Chickens get mutated virus from wild bird, pigs get mutated virus from chicken, farmer gets mutated virus from pig - we now have a new disease. 

It's a classic example of how new viruses enter the human population, & why those evil government & academic scientists have been watching this for awhile (between plotting global warming conspiracies) 

Should we be scared to death? No. Careful? Yes.