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2008-2009 Influenza Season Week 19 ending May 16, 2009
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May 22, 2009
[PDF-345.73 KB]
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Description:All data are preliminary and may change as more reports are received.
(Due to the response to the novel influenza A (H1N1) investigation, surveillance regions were changed from Census Divisions to Department of Health and Human Services (HHS) Regions.)
Synopsis: During week 19 (May 10 - 16, 2009), influenza activity decreased in the United States, however there are still higher levels of influenza-like illness than is normal for this time of yea
External_F0919.pdf
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