Dangers Letting Cats Catch Mice

Recently, one of our outdoor cats killed a mouse and left it on our porch. I have heard that mice carry the Hantavirus, especially in Arizona. So I picked it up with a rag, careful not to touch it, and disposed of both the mouse and the rag. I know of someone who died from touching a mouse here.

Here is a link where you can read about dangers for cats regarding mice. http://cats.about.com/cs/zoonoticdiseases/a/catsandmice.htm

There is nothing you can do about the feral/homeless cats getting them. But you can keep your own cats inside. What a shame - cats are supposed to be helping keep the rodent population down. Of course, birds, snakes and other wildlife do this as well. Sometimes I'm exasperated at how the natural order of things is so out of balance.
How about you?