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West Nile Virus Disease Cases by State 2018

West Nile Virus Disease Cases* and Presumptive Viremic Blood Donors by State – United States, 2018 (as of September 18, 2018)

West Nile Virus Disease Cases and Presumptive Viremic Blood Donors by State – United States, 2018 (as of September 18, 2018)
State Neuroinvasive
Disease Cases†
Non–neuroinvasive
Disease Cases
Total
cases
Deaths Presumptive viremic
blood donors‡
Alabama 9 12 21 0 3
Arizona 8 0 8 0 0
California 37 19 56 2 17
Colorado 23 24 47 1 1
Connecticut 5 1 6 0 0
Delaware 3 0 3 1 0
District of Columbia 5 5 10 0 0
Florida 6 2 8 0 4
Georgia 10 3 13 1 2
Idaho 6 3 9 0 0
Illinois 31 16 47 1 3
Indiana 11 2 13 0 3
Iowa 26 13 39 3 5
Kansas 4 2 6 0 0
Kentucky 5 1 6 0 0
Louisiana 42 22 64 3 10
Maine 1 0 1 0 0
Maryland 11 8 19 0 2
Massachusetts 7 1 8 0 0
Michigan 33 11 44 2 8
Minnesota 1 4 5 0 20
Mississippi 22 10 32 0 1
Missouri 9 3 12 1 0
Montana 15 14 29 1 4
Nebraska 68 65 133 4 38
Nevada 0 2 2 0 1
New Jersey 16 5 21 0 2
New Mexico 2 1 3 0 1
New York 18 3 21 2 3
North Carolina 3 0 3 1 0
North Dakota 36 93 129 1 1
Ohio 15 8 23 2 7
Oklahoma 5 2 7 1 5
Oregon 0 2 2 0 0
Pennsylvania 24 9 33 1 9
South Carolina 4 0 4 1 3
South Dakota 25 82 107 2 19
Tennessee 6 0 6 2 0
Texas 34 12 46 0 19
Utah 4 3 7 1 0
Virginia 15 6 21 1 1
Washington 0 0 0 0 1
Wisconsin 2 0 2 0 3
Wyoming 1 0 1 0 0
Totals 608 469 1,077 35 196

*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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