Uh oh! Something new-Rev. 1

Check this out.

http://www.kare11.com/news/whats-killing-bees-new-clue-emerges/380743617

Here is a second article with a little more technical detail.

http://www.uwstout.edu/news/articles/Professor-students-identify-bacterium-that-may-kill-honey-bees.cfm