A federal health official announced the findings Wednesday, at a medical meeting in Atlanta. The information comes from a household survey of more than 10,000 adults done in the first 11 days of October.
Overall, the survey found that 7 percent of the surveyed adults said they'd had a flu-like illness in the past week.
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On the Net:
CDC swine flu update: http://www.cdc.gov/h1n1flu/update.htm