They problably are. Be careful though, last time I checked they still don't have any way of finding out if people are infected before they get on a plane.
Forgot to mention, I saw the funniest thing on the news last night about this, a reporter was talking about how some official (or someone) stated how they shouldn't blow this out of portion and that they shouldn't show too many graphic images that could stir panic "like people wearing masks" (those are the reporter's words not mine. And the whole time he said that they were constantly showing video footage of people wearing masks and showing all the countries it was in and etc. etc. etc.
Agreed, although it could be from the flu. The flu is constantly mutating every year and they constantly have to making new strains of a vaccine. Some scientist a few years ago theorized that it might be able to combine itself with another virus creating a completely new virus "that could have a serious impact."