Watson turns medic: Supercomputer to diagnose disease — from newscientist.com by Jim Giles

Also see:

IBM Watson making progress to becoming a useful medical assistant for diagnosis and treatment planning — from nextbigfuture.com

A comment left on that post reads:

Physicians assistant? Forget that, this is going to become a lot of people’s primary care giver. This has the potential to change medicine radically. Especially as genomics and protenomic become cheaper and more frequently used with other diagnostic tools. Human doctors aren’t going to be able to keep up with the multi-variable calculus that medicine is becoming, Watson has a chance.