CDC H1N1 Flu | Novel H1N1 U.S. Situation Update

Novel H1N1 Flu Situation Update
July 31, 2009, 11:00 AM ET
Map: Weekly Influenza Activity Estimates Reported by State and Territorial Epidemiologists
(Activity levels indicate geographic spread of both seasonal and novel influenza A [H1N1] viruses)
(Posted July 31, 2009, 1:30 PM ET, for Week Ending July 25, 2009)

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