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2009 H1N1 Flu Situation Update
August 28, 2009, 11:00 AM ET

This website is archived for historical purposes and is no longer being maintained or updated. For updated information on the current flu season, see the CDC Seasonal Flu website.

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 August 28, 2009, 6:00 PM ET, for Week Ending August 22, 2009)

FluView, Week Ending August 22, 2009. Weekly Influenza Surveillance Report Prepared by the Influenza Division. Weekly Influenza Activity Estimate Reported by State and Territorial Epidemiologists. Select this link for more detailed data.

For more details about the data in the map above, see the FluView Surveillance Report for the week ending August 15, 2009. For information about how this map is updated, see Questions & Answers About CDC's Online Reporting.

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 August 28, 2009, 6:00 PM ET, for Week Ending August 22, 2009)

Graph of U.S. patient visits reported for Influenza-like Illness (ILI) for week ending August 22, 2009.

 

Total U.S. 2009 H1N1 Flu Hospitalizations and Deaths
Posted August 28, 2009, 11:00 AM ET
Data reported to CDC by August 27, 2009, 4:00 PM ET
Reporting States and Territories*
Hospitalized Cases
Deaths
51 8,842 555

*Includes the District of Columbia, American Samoa, Guam, Puerto Rico and the U.S. Virgin Islands.

The number of hospitalized 2009 H1N1 cases and deaths presented in this table are an aggregate
of reports received by CDC from U.S. states and territories and will be updated weekly each
Friday at 11am. For state level information, refer to state health departments.

CDC discontinued reporting of individual confirmed and probable cases of 2009 H1N1 infection on
July 24, 2009. CDC will report the total number of hospitalizations and deaths weekly, and continue
to use its traditional surveillance systems to track the progress of the 2009 H1N1 flu outbreak.
For more information about CDC’s 2009 H1N1 influenza surveillance system, see
Questions & Answers About CDC's 2009 H1N1 Influenza Surveillance.

International Human Cases of 2009 H1N1 Flu Infection
See: World Health Organization.

 
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