West Nile Virus in Illinois

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Positive Birds,
Mosquitoes, Horses and other Animals

Year:

Click on county name for a detailed list of the municipality where the bird, mosquito and/or horse was found and the date it was collected.

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County	American Crow	Blue Jay	Other Birds	Mosquito Batches	Horse
BOONE	2	0	0	5	0
CLINTON	0	0	0	16	0
COOK	2	0	0	2004	0
DEKALB	0	0	0	1	0
DOUGLAS	0	0	0	0	3
DUPAGE	1	0	0	137	0
EDGAR	0	0	0	1	0
FAYETTE	0	0	0	1	0
FORD	1	0	0	3	0
FRANKLIN	0	0	0	1	0
GALLATIN	0	0	0	5	0
GREENE	0	0	0	2	0
GRUNDY	1	0	0	5	0
HANCOCK	0	0	0	1	0
IROQUOIS	0	0	0	1	0
JACKSON	0	0	0	1	0
JEFFERSON	0	0	0	2	0
KANE	0	0	1	44	0
KANKAKEE	0	0	0	9	1
KENDALL	0	0	0	5	0
KNOX	1	0	0	1	0
LAKE	0	2	0	81	0
LASALLE	0	0	0	1	0
LOGAN	0	0	1	1	0
MACON	0	0	0	3	0
MACOUPIN	0	0	1	14	0
MCHENRY	1	0	0	15	0
MCLEAN	2	0	0	3	0
MERCER	0	0	0	1	0
MONTGOMERY	0	0	0	2	1
OGLE	0	0	0	1	0
PEORIA	1	0	0	10	0
PERRY	0	0	1	0	0
ROCK ISLAND	0	0	0	4	0
SAINT CLAIR	0	0	0	2	0
SANGAMON	1	0	0	0	0
STEPHENSON	1	0	0	1	0
TAZEWELL	0	0	0	1	0
VERMILION	0	0	1	1	0
WASHINGTON	0	0	0	1	0
WHITESIDE	0	0	0	1	0
WILL	0	0	0	18	0
WINNEBAGO	0	0	0	3	0
TOTAL	14	2	5	2409	5

Last Updated
10/25/2023

Illinois Department of Public Health
535 West Jefferson Street
Springfield, Illinois 62761
Phone 217-782-4977
Fax 217-557-3497
TTY 800-547-0466

Positive Birds, Mosquitoes, Horses and other Animals

Positive Birds,
Mosquitoes, Horses and other Animals