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Melanie James2020-09-15T23:26:29-07:00

West Nile Virus Activity

Indicators Placer County* CA*
Mosquito Samples 177 4,512
Dead Birds 43 849
Horses 1 31
Human Cases/Fatal Cases 6/1 343/11

*Last updated 12/4/2023.

Latest News

  • Placer County Confirms First West Nile Virus Death Since 2018 November 6, 2023
  • Invasive Aedes aegypti Mosquitoes Found in Stanford Neighborhood of Roseville October 13, 2023
  • Mosquitoes in Placer County Test Positive for St. Louis Encephalitis Virus September 13, 2023
  • First Human Case of West Nile Virus Reported in Placer County this Summer August 30, 2023

Upcoming Events

18 Dec

Board of Trustees Meeting

Monday
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25 Dec

Christmas Day Holiday – Office Closed

Monday
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01 Jan

New Years Day Holiday – Office Closed

Monday
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29 Jan

Board of Trustees Meeting

Monday
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