Case Counts by County

CountyDead birds
Alameda96
Alpine-
Amador-
Butte22
Calaveras-
Colusa4
Contra Costa44
Del Norte-
El Dorado7
Fresno9
Glenn4
Humboldt2
Imperial-
Inyo-
Kern3
Kings3
Lake18
Lassen-
Los Angeles99
Madera5
Marin6
Mariposa-
Mendocino-
Merced8
Modoc-
Mono-
Monterey-
Napa12
Nevada-
Orange426
Placer40
Plumas-
Riverside1
Sacramento294
San Benito-
San Bernardino17
San Diego30
San Francisco-
San Joaquin53
San Luis Obispo-
San Mateo19
Santa Barbara2
Santa Clara921
Santa Cruz1
Shasta6
Sierra-
Siskiyou-
Solano33
Sonoma37
Stanislaus47
Sutter19
Tehama-
Trinity-
Tulare40
Tuolumne-
Ventura7
Yolo71
Yuba16
Total2422

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 Nov 19, 2014201420135Y AVG
Counties404440
Human cases752356226
Dead birds24221246897
Mosquito samples333825201961
Sentinel chickens437481424
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

11.19 2014 YTD WNV Activity Map
11.18 2014 US Arboviral Activity Update
11.14 Arbovirus Bulletin #39

Humans

11.17 2014 Human WNV Incidence Report
11.17 2003-2014 WNV Case Summary
08.12 2013 Human WNV Incidence Report

Dead Birds

11.19Reported, Tested, Positive 2014
11.19Positive Counts by City/County for 2014
11.19Positive Species for 2014

Mosquitoes

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