Illinois department of Public Health, Pat Quinn - Governor
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 IDPH Seasonal Flu website.

H1N1 Flu

H1N1 Statistics H1N1 Flu Home

The Illinois Department of Public Health and the U.S. Centers for Disease Control and Prevention (CDC) have suspended the publishing of weekly flu surveillance reports. The Department’s weekly flu surveillance reports will resume in October 2010 and run through May 2011. Unusually high levels of flu that occurred in the spring of 2009 prompted CDC and the Department to issue weekly reports throughout last summer and early fall. The Department’s final report for the 2009-2010 flu season, published in May 2010, showed continued low levels for all flu indicators. Only a small number of influenza viruses were reported in May, most of which were H1N1. Flu is unpredictable, but sporadic cases of flu, caused by either H1N1 or seasonal flu viruses, will likely continue to occur throughout the summer in Illinois and the United States.
 
Figure 1. Counties where deaths associated with laboratory confirmed H1N1 infection have been reported since 4/5/2009 to 6/1/2010
 
Illinois H1N1 deaths by county
 
Figure 2. Reported H1N1 (2009) hospitalizations* and deaths by week since 4/5/2009.

Reported H1N1 (2009) hospitalizations* and deaths (4/5/2009-12/11/2009) by week.
* Does not include 15 cases with unknown date of hospital admission.

Since the cases listed on the IDPH website represent a weekly update, the totals may not always be consistent with those reported by local health departments. If there is a discrepancy between the state and local health department counts, data from the local health departments should be used as the most accurate number. If the county of residence of an individual is unknown, reporting by IDPH is delayed.


H1N1 Flu Vaccine Sites

Seasonal Influenza




Get info on H1N1 flu & more. Text 'Health' to 87000. www.flu.gov

Vaccine Adverse Event Reporting System (VAERS)

Flu View - A weekly influenza surveillance report


H1N1 Flu Vaccine Sites

Seasonal Influenza




Get info on H1N1 flu & more. Text 'Health' to 87000. www.flu.gov

Vaccine Adverse Event Reporting System (VAERS)

Flu View - A weekly influenza surveillance report


Illinois Department of Public Health | 535 West Jefferson Street | Springfield, Illinois 62761
Phone 217-782-4977 | Fax 217-782-3987 | TTY 800-547-0466