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SurveillanceCook County Surveillance

Human Cases

County Age Gender West Nile Clinical Diagnosis Date Reported
Rock Island 51 Male Other Clinical/Unspecified October 27, 2005
Rock Island 66 Female Fever January 17, 2006

* indicates individual has died

Neuroinvasive Disease - The most severe type of disease due to a person being infected with West Nile virus is sometimes called “neuroinvasive disease” because it affects a person’s nervous system. Specific types of neuroinvasive disease include: West Nile encephalitis, West Nile meningitis or West Nile meningoencephalitis. Encephalitis refers to an inflammation of the brain, meningitis is an inflammation of the membrane around the brain and the spinal cord, and meningoencephalitis refers to inflammation of the brain and the membrane surrounding it.

West Nile fever - West Nile Fever is another type of illness that can occur in people who become infected with the virus. It is characterized by fever, headache, tiredness, aches and sometimes rash. Although the illness can be as short as a few days, even healthy people have been sick for several weeks.

Other Clinical/Unspecified - Includes persons with clinical manifestations other than West Nile fever, West Nile encephalitis or West Nile meningitis, such as acute flaccid paralysis. Unspecified cases are those for which sufficient clinical information was not provided.

Reported Animal/Insect Positives

County Municipality Date Collected Animal/Insect
Rock Island Andalusia September 1, 2004 Mosquitoes
Rock Island Moline September 1, 2004 American crow
Rock Island Rock Island August 22, 2004 Blue jay
Rock Island Moline August 16, 2004 American crow
Rock Island Rock Island July 26, 2004 Mosquitoes
Rock Island Rock Island July 7, 2004 American crow
Rock Island Moline June 30, 2004 Mosquitoes

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