"We need to make sure if there are other cases in schools, they aren't cases that are randomly occurring but are cases which sat next to students who are sick," said Dr. David Heymann of the World Health Organization in Geneva. "The same goes for airplanes. We would want to make sure that it was people sitting next to that person and not the ventilation system in the airplane that was spreading the disease."
When everyone in a given plane comes down with the disease from one passenger, or every child in a school gets it from one, then I'll worry. Until then, I will maintain that at least 90% of this whole story is based on the fact that the media need something to scare us with.