Map: Weekly Influenza Activity Estimates Reported by State and Territorial Epidemiologists (Activity levels indicate geographic spread of both seasonal and 2009 influenza A [H1N1] viruses) (Posted January 15, 2010, 5:30 PM ET, for Week Ending January 8, 2010) -- Percentage of Visits for Influenza-like Illness (ILI) Reported by the U.S. Outpatient Influenza-like Illness Surveillance Network (ILINet), National Summary 2008-2009 and Previous Two Seasons (Posted January 15, 2010, 5:00 PM ET, for Week Ending January 8, 2010) -- Laboratory Confirmed Influenza-Associated Hospitalizations and Deaths from August 30 2009 to January 9, 2010 : Posted January 15, 2010, 11:00 AM ET : Data reported to CDC by January 12, 2010, 12:00 AM ET -- U.S. Influenza-associated Pediatric Mortality : Posted January 15, 2010 (Updated Weekly) : Data reported to CDC by January 9, 2010.

Stephen B. Thacker CDC Library collection