I was extremely worried about SARS, and I still have part of the case of face masks I bought in case it came to my city.
I’m only slightly worried about this one. I still have the face masks, after all. 
Mostly I’m less worried because the China and the international medical community seem to have successfully contained SARS and MERS. I’m shocked that they did that, but the evidence is pretty compelling. But I’m still a little worried. Something as communicable as the common cold that kills a large fraction of its victims seems like it could cause a massive pandemic, and even if I were to survive that, it would be pretty damn problematic to my life.