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 December 3, 2019)
*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.
Page last reviewed: December 3, 2019
Content source: Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Division of Vector-Borne Diseases (DVBD)
Comparison to previous years:
Dec 3 2019 - 885 cases, 47 fatal
Full year totals:
2018 - 2,647 cases, 167 fatal
2017 - 2,097 cases, 146 fatal
2016 - 2,149 cases, 106 fatal
2015 - 2,175 cases, 146 fatal
2014 - 2,205 cases, 97 fatal
2013 - 2,469 cases, 119 fatal
2012 - 5,674 cases, 286 fatal
2011 - 712 cases, 43 fatal
2010 - 1,021 cases, 57 fatal
West Nile Virus Disease Cases* and Presumptive Viremic Blood Donors by State – United States, 2019 (as of December 3, 2019)
*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.
Page last reviewed: December 3, 2019
Content source: Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Division of Vector-Borne Diseases (DVBD)
Comparison to previous years:
Dec 3 2019 - 885 cases, 47 fatal
Full year totals:
2018 - 2,647 cases, 167 fatal
2017 - 2,097 cases, 146 fatal
2016 - 2,149 cases, 106 fatal
2015 - 2,175 cases, 146 fatal
2014 - 2,205 cases, 97 fatal
2013 - 2,469 cases, 119 fatal
2012 - 5,674 cases, 286 fatal
2011 - 712 cases, 43 fatal
2010 - 1,021 cases, 57 fatal
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