West Nile Virus in Illinois - Surveillance

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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.

RSS Feed CSV

County	American Crow	Blue Jay	Other Birds	Mosquito Batches	Horse	Other Mammals
BOND	0	0	0	1	0	0
BOONE	0	0	0	6	0	0
BUREAU	0	0	0	2	0	0
CARROLL	0	0	0	2	0	0
CHAMPAIGN	0	0	0	7	0	0
CHRISTIAN	0	0	0	3	0	0
CLAY	0	0	0	4	0	0
CLINTON	0	0	0	8	0	0
COLES	0	0	0	0	1	0
COOK	0	0	0	2611	0	0
CRAWFORD	0	0	0	1	0	0
DEKALB	0	0	0	20	0	0
DOUGLAS	0	0	0	0	4	0
DUPAGE	0	0	0	253	0	0
FAYETTE	0	0	0	0	3	0
FORD	0	0	0	5	0	0
FULTON	0	0	0	3	0	0
GREENE	0	0	0	11	0	0
GRUNDY	0	0	0	18	0	0
HENRY	0	0	0	4	0	0
KANE	0	0	0	94	1	0
KANKAKEE	0	0	0	11	0	0
KENDALL	0	0	0	8	0	0
KNOX	0	0	0	4	0	0
LAKE	0	0	0	208	0	0
LASALLE	0	0	0	7	0	0
LEE	0	0	0	2	0	0
LIVINGSTON	0	0	0	1	1	0
LOGAN	0	0	0	1	0	0
MACON	0	0	0	40	0	0
MACOUPIN	0	0	0	4	0	0
MADISON	0	0	0	32	2	0
MARION	0	0	0	2	0	0
MARSHALL	0	0	0	1	0	0
MASSAC	0	0	0	1	0	0
MCHENRY	0	0	0	46	0	0
MCLEAN	0	0	0	13	0	0
MENARD	0	0	0	4	0	0
MONROE	0	0	0	1	1	0
MONTGOMERY	0	0	0	42	0	0
MORGAN	0	0	0	4	0	0
MOULTRIE	0	0	0	0	7	0
OGLE	0	0	0	1	0	0
PEORIA	0	0	0	10	0	0
PUTNAM	0	0	0	2	0	0
RANDOLPH	0	0	0	1	0	0
ROCK ISLAND	0	0	0	17	0	0
SAINT CLAIR	0	0	0	25	0	0
SANGAMON	0	0	0	1	0	0
STARK	0	0	0	1	0	0
STEPHENSON	0	0	0	4	0	0
TAZEWELL	0	0	0	8	0	0
VERMILION	0	0	0	1	0	0
WASHINGTON	0	0	0	2	0	0
WHITE	0	0	0	1	0	0
WHITESIDE	0	0	0	2	0	0
WILL	0	0	0	15	1	0
WINNEBAGO	0	0	0	11	0	0
TOTAL	0	0	0	3587	21	0

Last Updated
10/28/2026

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