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10 October 18, 2021

10 October 18, 2021

Max Weirauch2022-01-21T09:09:39-08:00January 21, 2022|

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West Nile Virus Activity

Indicators Placer County* CA*
Mosquito Samples 145 2750
Dead Birds 8 151
Horses 0 5
Human Cases/Fatal Cases 6/1 92/8

*Updated 11/10/2025

Latest News

  • Placer County confirms first West Nile virus death of season October 6, 2025
  • First Human Case of West Nile Virus Reported in Placer County This Summer August 29, 2025
  • West Nile Virus Positive Mosquitoes Found in West Placer County Agricultural Area June 18, 2025
  • West Nile Virus Mosquitoes Detected In Sheridan July 11, 2024

Upcoming Events

17 Nov

Board of Trustees Meeting

Monday
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27 Nov

Thanksgiving Day Holiday – Office Closed

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28 Nov

Day After Thanksgiving Holiday – Office Closed

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15 Dec

Board of Trustees Meeting

Monday
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No event found!
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