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

Case Counts by County

CountyDead birds
Alameda2
Alpine-
Amador-
Butte5
Calaveras-
Colusa1
Contra Costa19
Del Norte-
El Dorado2
Fresno5
Glenn2
Humboldt1
Imperial-
Inyo-
Kern3
Kings1
Lake5
Lassen-
Los Angeles101
Madera1
Marin1
Mariposa-
Mendocino-
Merced1
Modoc-
Mono-
Monterey1
Napa-
Nevada1
Orange57
Placer4
Plumas-
Riverside41
Sacramento86
San Benito-
San Bernardino45
San Diego41
San Francisco1
San Joaquin7
San Luis Obispo6
San Mateo1
Santa Barbara1
Santa Clara12
Santa Cruz1
Shasta2
Sierra-
Siskiyou-
Solano4
Sonoma5
Stanislaus6
Sutter3
Tehama-
Trinity-
Tulare8
Tuolumne-
Ventura2
Yolo14
Yuba6
Total505

WNV Activity by County
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2013 | 2012 | 2011
2010 | 2009 | 2008
2007

News

At the Twilight's Last Gleam - Be Sure Repellent is on Your TEAM!

Jul 1, 2010

Independence Day is upon us once again! Many of us will be celebrating America's "Birthday" in the evenings, outdoors, with fireworks, barbecues and family gatherings.

And you won't be alone! West Nile virus carrying mosquitoes could be celebrating with you! Reduce your chances of being bitten and infected with West Nile virus by following these few simple repellent guidelines:

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.

Use just enough repellent to cover exposed skin. Heavy application doesn't mean longer protection.

When using spray repellents do not spray directly on face--spray on hands first and then apply to face.

Do not allow children to handle the product. When using on children, apply to your own hands first and then put it on the child.

For more information on mosquito repellents and West Nile virus visit: http://www.cdc.gov/ncidod/dvbid/westnile/RepellentUpdates.htm

Having problems with mosquitoes?

Locate your local mosquito and vector control agency
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Compared to previous year and previous five-year average to date

As of Dec 11, 2017201720165Y AVG
Counties473841
Human cases489405525
Dead birds50513471600
Mosquito samples337035193112
Sentinel chickens305343451
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2016 YTD activity -

WNV Reports

Weekly Report

12.11 2017 YTD WNV Activity Map
12.06 2017 YTD SLEV Activity Map
12.05 2017 US Arboviral Activity Update

Humans

11.30 2017 Human WNV Incidence Report
11.30 2003-2017 WNV Case Summary
02.08 2016 Human WNV Incidence Report

Dead Birds

12.11Positive Counts by City/County for 2017
12.11Positive Species for 2017
12.11Reported, Tested, Positive 2017

Mosquitoes

11.09 AMOR - EVS Week 44
11.09 AMOR - GRAVID Week 44
11.09 AMOR - NJLT Week 44
- view report archives -