Precautions, yes, but I read an article in the Guardian where an epidemiologist (spelling?) stated that face masks weren't going to help. Wash your hands after travelling and don't touch your face with a hand that has touched anything you can't be sure is clean.

The detail on the numbers I quote above is that more than 90% of deaths are in the over 65s, and the next highest is in the under 5s.
So far, 1% of identified cases of this disease have ended in death, according to stats quoted by BBC News & Guardian. Better odds than cancer, but I wouldn't wish any illness on anybody.