The new Chinese SERS-MERS like virus. The numbers :
Infected : 300 officially.
Dead : 6.
Therefore death rate is around 2%. Compare that with MERS where death rate was 30% or the new Dengu strain in BD where death rate was 0.5%.
Now these numbers might not be accurate. Hundreds might be dying and China might be hiding the bodies, or millions might have been infected with only six dead and China might be pulling down the number of infections.
But right now -- I still don't see much to be worried about. We already have much worse around.