This virus and many more to come are inevitable because of overcrowding and easy travel.
Too many people jam packed into old buildings that share the same air in NYC, if your next door neighbor farts, you smell it. Look where the highest death tolls are.
Modern medicine has also kept many people alive much longer than their ability to fight off a flu like this. The old and the already sick seem to be the most affected by china flu. Many who died should have died months or years ago. Harsh comments by me, of course, but accurate none the less.
This world is too crowded and needed some thinning. Tempers flare when too many disagreeable people get jammed into one room. The Earth is the same. I remember the Star Trek episode where the planet was solid people pressed against the walls and each other.
Be prepared for many more of these disease outbreaks. They are inevitable.