Yesterday afternoon, a Continental flight from Hong Kong landed at Newark Liberty International Airport but passengers were held because some were feeling ill. In a reassuring piece of news, apparently seven passengers had "signs of fever and reported vomiting" even before the flight took off. We thought that Hong Kong's airport had those post-avian bird flu scanners that shows if a passenger has a higher body temperature than usual - and stop people who are sick.
The flight contacted the Centers for Disease Control and Prevention, which interviewed the sick passengers once they landed and decided they had a "seasonal flu." Apparently the sick passengers were part of a group who had traveled on a river cruise in Asia and were continuing their travels to Canada. The flight was allowed to fly its next leg to Montreal.
Here's an MSNBC article about germs on a plane.