What you don't know might kill you

When it comes to the dreaded Wuhoo Flu, we don't know what we don't know.  Or so it seems.

But we do know that it is attacking New York pretty hard.  So what is so different about New York?  Could it be population density?

Maybe, but other places in the world are densely populated.  It may be a factor, but it isn't the ONLY factor.

And so on and so forth.

Worth a read.