H1N1 Virus (Swine Flu)

Illinois Weekly H1N1 Influenza Activity Estimates, December 18, 2009

SPRINGFIELD–(ENEWSPF)–December 18, 2009. 

Illinois H1N1 Cumulative
Vaccine Allocation*
(As of December 17, 2009)
Allocated 3,207,400
Ordered 3,148,600
Shipped 3,121,920

* 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 18, 2009, 10 a.m.)
Updated on Fridays
New* Cumulative
Hospitalizations 99 2502
Deaths** 2 78

* 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 18, 2009, 10 a.m.)
Updated on Fridays
Age range
0-4 484 2
5-18 575 11
19-24 197 3
25-49 645 30
50-64 424 20
65 + 173 12
Unknown 4 0
TOTAL 2502 78

* 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