MERS - Now widespread Human to Human Transmission

[TOF]

It's this sort of thing that scares the poop out of me. I've been keeping a weather eye on it and the US had it's first case this month. Although it seems to still have difficulty transmitting person to person, if it gets into a larger population, and therefore a bigger target it has the potential to mutate at a much faster rate than at present, where it is mainly contained within Mecca and Jeddah
As you mentioned RS, returning Haj disciples could be the catalyst for it to move out of the Middle East.