H1N1 Virus (Swine Flu)

Illinois Weekly H1N1 Influenza Activity Estimates, December 31, 2009

Springfield, IL–(ENEWSPF)–December 31, 2009.

Illinois H1N1 Cumulative
Vaccine Allocation*
(As of December 29, 2009)
Allocated 3,643,100
Ordered 3,405,700
Shipped 3,282,020

* The above table represents H1N1 vaccine allocation for the 10 million people in Illinois who live outside the city of Chicago. Chicago receives an H1N1 vaccine allotment for its
3 million residents directly from the federal government.

Confirmed H1N1 2009
Hospitalizations and Deaths
(As of December 31, 2009, 10 a.m.)
Updated on Fridays
New* Cumulative
Hospitalizations 77 2629
Deaths** 4 83

* Newly reported cases for this week; reporting may be delayed. See Figure 3 on Dates of Hospitalization and Death from More Illinois H1N1 Statistics Webpage for more specific information.

**IDPH reports H1N1 influenza associated deaths, which are those with a laboratory confirmed 2009 H1N1 infection and an illness compatible with a diagnosis of influenza. In some situations, the primary cause of death may be due to another condition.

For more information on occurrence of influenza in Illinois, including H1N1, see additional H1N1 (2009) statistics and the weekly surveillance report.

H1N1 2009 Cumulative
Hospitalizations and Deaths
by Age Group*

(As of December 31, 2009, 10 a.m.)
Updated on Fridays
Age range
0-4 509 2
5-18 600 11
19-24 204 3
25-49 679 33
50-64 450 21
65 + 185 13
Unknown 2 0
TOTAL 2629 83

* Outpatients are not being routinely tested for influenza; therefore reports of confirmed cases cannot be relied upon to provide an accurate picture of novel H1N1 cases that do not require hospitalization. In order to assess influenza activity among outpatients, IDPH continues to obtain information from sentinel providers across the state, and will post surveillance reports on a weekly basis at www.idph.state.il.us/flu/fluupdate08-09.htm.


Source: idph.state.il.us