CA Dept. of Public Health UC Davis Arbovirus Research and Training Mosquito and Vector Control Assoc. of CA

Case Counts by County

CountyDead birds
Alameda4
Alpine-
Amador-
Butte-
Calaveras-
Colusa-
Contra Costa-
Del Norte-
El Dorado2
Fresno-
Glenn-
Humboldt1
Imperial-
Inyo-
Kern-
Kings-
Lake-
Lassen-
Los Angeles2
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange-
Placer-
Plumas-
Riverside1
Sacramento8
San Benito-
San Bernardino-
San Diego-
San Francisco-
San Joaquin-
San Luis Obispo-
San Mateo2
Santa Barbara-
Santa Clara5
Santa Cruz1
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus1
Sutter-
Tehama-
Trinity-
Tulare-
Tuolumne-
Ventura-
Yolo-
Yuba-
Total27

WNV Activity by County
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2018 | 2017 | 2016 | 2015 | 2014
2013 | 2012 | 2011
2010 | 2009 | 2008
2007

News

Summer is right around the corner

May 13, 2010

Longer days and warmer nights mean more outdoor activities for you and your family. It can also mean more chances of being bitten by mosquitoes carrying West Nile virus.

But protecting yourself from mosquito bites is easy. When spending time outdoors:


  • Know that dawn and dusk are the times of day when mosquitoes carrying WNV bite the most.
  • Apply a repellent containing DEET, picaridin, oil of lemon eucalyptus or IR3535 before going outside. Always follow the label directions carefully and reapply as necessary.
  • Wear long sleeved shirts and long pants.
  • For more information on mosquito repellents visit: http://www.cdc.gov/ncidod/dvbid/westnile/qa/insect_repellent.htm

Having problems with mosquitoes?

Locate your local mosquito and vector control agency
Search by Zip Code




Compared to previous year and previous five-year average to date

As of Jun 22, 2018201820175Y AVG
Counties151622
Human cases921
Dead birds2727129
Mosquito samples31301188
Sentinel chickens002
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2018 YTD activity -

WNV Reports

Weekly Report

06.22 Arbovirus Bulletin #12
06.22 2018 YTD SLEV Activity Map
06.22 2018 YTD WNV Activity Map

Humans

06.22 2018 Human WNV Incidence Report
06.22 2003-2018 WNV Case Summary
03.29 2017 Human WNV Incidence Report

Dead Birds

06.22Reported, Tested, Positive 2018
06.22Positive Species for 2018
06.22Positive Counts by City/County for 2018

Mosquitoes

06.22 AMOR - EVS Week 24
06.22 AMOR - GRAVID Week 24
06.22 AMOR - NJLT Week 24
- view report archives -