Now that America's housing market is so poorly, the fear of infection elsewhere is spreading like a bad case of the flu.

As South Koreans avoided crowds for fear of infection, shopping malls, theme parks, baseball stadiums and even subways and charter bus services all reported a sharp drop in users.

Some children live too far away from the hospital and the lack of effective treatment, and hospitals and schools because of fear of infection, some children can not be admitted to hospital or school.