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

Case Counts by County

CountyDead birds
Alameda11
Alpine-
Amador-
Butte21
Calaveras-
Colusa-
Contra Costa26
Del Norte-
El Dorado4
Fresno6
Glenn4
Humboldt-
Imperial-
Inyo-
Kern-
Kings4
Lake4
Lassen-
Los Angeles113
Madera5
Marin5
Mariposa-
Mendocino-
Merced5
Modoc-
Mono-
Monterey-
Napa1
Nevada2
Orange76
Placer27
Plumas-
Riverside14
Sacramento408
San Benito-
San Bernardino5
San Diego252
San Francisco-
San Joaquin35
San Luis Obispo-
San Mateo11
Santa Barbara-
Santa Clara85
Santa Cruz2
Shasta3
Sierra-
Siskiyou-
Solano11
Sonoma8
Stanislaus10
Sutter10
Tehama-
Trinity-
Tulare3
Tuolumne-
Ventura30
Yolo71
Yuba4
Total1276

WNV Activity by County
Printable Version
2016 | 2015 | 2014
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 Sep 23, 2016201620155Y AVG
Counties374038
Human cases234233192
Dead birds12769691176
Mosquito samples324927692451
Sentinel chickens295314325
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2015 YTD activity -

WNV Reports

Weekly Report

09.23 Arbovirus Bulletin #29
09.23 2016 YTD WNV Activity Map
09.20 2016 US Arboviral Activity Update

Humans

09.14 2016 Human WNV Incidence Report
09.14 2003-2016 WNV Case Summary
03.21 2015 Human WNV Incidence Report

Dead Birds

09.23Positive Species for 2016
09.23Reported, Tested, Positive 2016
09.23Positive Counts by City/County for 2016

Mosquitoes

09.23 AMOR - EVS Week 37
09.23 AMOR - GRAVID Week 37
09.23 AMOR - NJLT Week 37
- view report archives -