Case Counts by County

CountyDead birds
Alameda89
Alpine-
Amador-
Butte20
Calaveras-
Colusa4
Contra Costa40
Del Norte-
El Dorado5
Fresno9
Glenn4
Humboldt2
Imperial-
Inyo-
Kern3
Kings3
Lake18
Lassen-
Los Angeles70
Madera5
Marin5
Mariposa-
Mendocino-
Merced7
Modoc-
Mono-
Monterey-
Napa12
Nevada-
Orange326
Placer39
Plumas-
Riverside1
Sacramento285
San Benito-
San Bernardino13
San Diego7
San Francisco-
San Joaquin50
San Luis Obispo-
San Mateo16
Santa Barbara-
Santa Clara863
Santa Cruz1
Shasta6
Sierra-
Siskiyou-
Solano33
Sonoma26
Stanislaus45
Sutter19
Tehama-
Trinity-
Tulare40
Tuolumne-
Ventura5
Yolo68
Yuba16
Total2155

WNV Activity by County
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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

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 Sep 26, 2014201420135Y AVG
Counties384138
Human cases375176115
Dead birds21551102770
Mosquito samples304723791818
Sentinel chickens361404329
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

09.29 2014 YTD WNV Activity Map
09.23 2014 US Arboviral Activity Update
09.19 Arbovirus Bulletin #31

Humans

09.22 2014 Human WNV Incidence Report
09.22 2003-2014 WNV Case Summary
08.12 2013 Human WNV Incidence Report

Dead Birds

09.29Reported, Tested, Positive 2014
09.29Positive Counts by City/County for 2014
09.29Positive Species for 2014

Mosquitoes

09.26 Arbovirus Bulletin #32
09.26 AMOR - EVS Week 38
09.26 AMOR - GRAVID Week 38
- view report archives -