Latest West Nile Virus Activity In Marin & Sonoma Counties

Release date: 
Sep 27

Cotati, CA-The Marin/Sonoma Mosquito & Vector Control District (District) confirmed additional West Nile virus (WNV) activity in Sonoma County.  Mosquito samples collected from Cloverdale and Healdsburg both tested positive for the virus.

"With virus activity being detected in the adult mosquito population, taking personal protection measures against bites is crucial," stated Nizza Sequeira, Public Relations Director for the Marin/Sonoma Mosquito & Vector Control District. "In addition, we need residents to report mosquito problems in their area to our District. By working together, we can lessen the risk of West Nile virus transmission."

The Centers for Disease Control recommend using repellents that contain one of the following active ingredients: DEET, picaridin, IR3535, or oil of lemon eucalyptus (PMD). These active ingredients are EPA registered and have been studied and tested to make sure they are effective and safe (when used according to label directions).  Other personal protection measures include wearing long sleeve shirts and long pants.

Click here for all 2013 WNV activity in Marin and Sonoma Counties.

Simple ways to help reduce exposure to mosquitoes and lessen the risk of WNV:

  • Eliminate standing water in rain barrels, old tires, buckets, kiddie pools or any other item that can hold water for more than 72-96 hours. 
  • Check septic tank lids to ensure a tight seal and repair any visible cracks.
  • Screen septic tank vent pipes using a fine mesh screen.
  • Report mosquito problems, neglected swimming pools, or any area that could be producing mosquitoes at www.msmosquito.com or 1-800-231-3236.
  • Stock backyard ponds or other permanent water features with mosquitofish. The fish are free and can be delivered or simply picked up at the district office.
  • Report dead birds to the West Nile virus hotline at 1-877-968-2473 or online at www.westnile.ca.gov.
  • Wear mosquito repellent when outdoors at dusk and dawn. Use a repellent containing one of the following active ingredients: DEET, Picaridin, oil of lemon eucalyptus, or IR3535. 
  • Residents interested in staying informed about district activities are encouraged to follow MSMVCD on twitter and facebook.

West Nile virus is a mosquito-borne disease that is spread by the bite of an infected mosquito. Mosquitoes become infected when they feed on infected birds. Infected mosquitoes can then spread the disease to humans and other animals. 

 Less than 1% of people (1 in 150) infected with WNV develop serious illness. These cases may last for extended periods of time, result in permanent neurological damage and may be fatal. Approximately 20% of people (about 1 in 5) infected with WNV experience mild symptoms that may include fever, headache, body aches, nausea, rashes, swollen lymph nodes and vomiting. Approximately 80% of people (about 4 out of 5) infected with WNV do not show any symptoms.

The Marin/Sonoma Mosquito and Vector Control District is an independent special district committed to protecting public health from mosquitoes and vector-borne disease. All programs and services are funded through benefit assessments and property taxes. Services are provided to all residents in Marin and Sonoma counties.   

    

###