Might add a bit more as to what I do.
I'm currently employed as an IT Security Officer at a Government Dept in Aus, we see all kinds of infections around the place, one I have posted in the Malware forums. My task is mostly about prevention which sounds a lot harder than it seems. It's very easy to clean an infection but to prevent it happening is a different story.
Hopefully my experience can help some user's here as well.