Disease double standard?

I'm just curious why, when the bird flu arose in China the world was on high alert and we were warned against travel and to be careful, and the media watched it's progress like a hawk--even though it took months to move from China to the rest of the world. Instead, Swine flu arises, quickly kills 50 people in Mexico, within days it's across the Atlantic...and yet the media tells us that we shouldn't worry this time. Am I the only one confused? I can't help but see a strong double standard or the hand of propaganda at work through the WHO. A disease comes from the west and it's 'let's wait and see, it's probably not that bad' but a disease comes from the east and it's 'we're all probably going to die if we're not super careful and cut all ties to the country of origin'. Come on! These are peoples lives! More common sense and less politics please.