It is not a plague. It's closer to the common cold or pneumonia. 81 confirmed deaths. Could be more but right now 81. ALL IN CHINA. there have been other countries that have detected it. but from what i last read it was like 13 countries, total 38 people infected. only one country had more than 5 infected people. at 7. Could be more, but I'm going based on what i read.
Is it bad? Don't know, from just looking at the numbers not really, but who knows if china is telling the truth. Should you worry? No. if it escalates and gets closer to home then yes. But right now? No.
Don't buy into the fear mongering thats going on right now. Chances are this is just the ebola crisis all over again.