West Nile Virus Disease Cases by State 2019

West Nile Virus Disease Cases* and Presumptive Viremic Blood Donors by State – United States, 2019 (as of July 9, 2019)

West Nile Virus Disease Cases and Presumptive Viremic Blood Donors by State – United States, 2018 (as of November 27, 2018)
State Neuroinvasive
Disease Cases†
Non–neuroinvasive
Disease Cases
Total
cases
Deaths Presumptive viremic
blood donors‡
Arizona 19 9 28 0 10
Arkansas 1 0 1 1 0
Colorado 0 1 1 0 0
Idaho 0 1 1 0 0
Nevada 1 0 1 0 0
New Jersey 1 0 1 0 0
Oklahoma 1 2 3 0 0
South Dakota 0 1 1 0 0
Virginia 0 1 1 0 0
Wyoming 1 0 1 0 0
Totals 24 15 39 1 10

*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.