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West Nile Virus Disease Cases by State

West Nile Virus Disease Cases* and Presumptive Viremic Blood Donors by State – United States, 2017 (as of October 10, 2017)

State Neuroinvasive
Disease Cases”
Non–neuroinvasive
Disease Cases
Total
cases
Deaths Presumptive viremic
blood donors‡
Alabama 1 0 1 0 0
Arizona 61 13 74 5 15
Arkansas 11 3 14 3 6
California 208 50 258 13 32
Colorado 23 30 53 3 4
Connecticut 2 1 3 0 0
District of Columbia 0 1 1 0 0
Florida 1 0 1 0 1
Georgia 32 5 37 5 7
Idaho 6 5 11 0 0
Illinois 32 9 41 0 0
Indiana 12 4 16 3 6
Iowa 8 2 10 2 5
Kansas 7 12 19 0 3
Kentucky 5 1 6 0 0
Louisiana 29 8 37 3 2
Maryland 4 0 4 0 0
Massachusetts 1 0 1 0 0
Michigan 29 7 36 0 9
Minnesota 9 14 23 1 19
Mississippi 43 16 59 2 3
Missouri 13 0 13 0 0
Montana 2 8 10 0 3
Nebraska 13 39 52 0 14
Nevada 22 27 49 2 2
New Jersey 4 1 5 0 0
New Mexico 17 9 26 1 2
New York 26 7 33 2 2
North Carolina 1 0 1 0 0
North Dakota 18 43 61 2 1
Ohio 14 8 22 2 8
Oklahoma 18 10 28 2 6
Oregon 0 5 5 1 0
Pennsylvania 8 5 13 1 0
Rhode Island 0 1 1 0 1
South Carolina 8 1 9 1 2
South Dakota 26 43 69 4 2
Tennessee 13 6 19 1 2
Texas 56 36 92 3 12
Utah 30 20 50 3 5
Vermont 1 0 1 0 1
Virginia 8 1 9 0 3
Washington 6 1 7 0 1
West Virginia 1 0 1 0 0
Wisconsin 11 2 13 2 8
Wyoming 0 1 1 0 0
Totals 840 455 1,295 67 187

*Includes confirmed and probable cases.

”Includes cases reported as meningitis, encephalitis, or acute flaccid paralysis.

‡Presumptive viremic blood donors (PVDs) are people who had no symptoms at the time of donating blood through a blood collection agency, but whose blood tested positive when screened for the presence of West Nile virus. Some PVDs develop symptoms after donation.

Please refer to state health department web sites for further details regarding state case totals.

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