Adequate Supply of Swine Flu Vaccine Uncertain
U.S. has enough capacity for typical season; experts less sure about global outlook
And while she believes the United States is better prepared today than it was 33 years ago, a new vaccination program doesn't turn on a dime.
"If everybody starts lining up tomorrow, they're going to be waiting a really long time," Layton said.
More information
Get more facts about swine flu from the U.S. Centers for Disease Control and Prevention.
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