Bird Flu Report Says States, Cities Shouldn't Count on Federal Rescue if Super-Strain Hits

A medical reality is complicating federal preparations for the next pandemic: Flu spreads in ways that make it extremely unlikely the U.S. could avoid being hit.Even shutting U.S. borders against outbreaks abroad offers little reassurance, because people can spread flu a full day before they show symptoms. With 1.1 million people legally entering the country every day, that means a super-strain would probably be incubating here by the time it was diagnosed abroad.