The decline in U.S. air travel that followed the Sept. 11, 2001, attacks delayed the onset of that year's annual flu outbreak and slowed its spread around the country, according to a new analysis that could help health officials decide whether to impose flight restrictions in the event of a global... -
Post-9/11 Drop in Air Travel Delayed Flu Season, Study Finds
The decline in U.S. air travel that followed the Sept. 11, 2001, attacks delayed the onset of that year's annual flu outbreak and slowed its spread around the country, according to a new analysis that could help health officials decide whether to impose flight restrictions in the event of a global...-
By Rick Weiss