Fourteen Mosquito Samples And Four Dead Birds Test Positive For West Nile Virus

June 24, 2013


Wet weather will increase stagnant water and mosquito development 

Elk Grove, Calif.— The Sacramento-Yolo Mosquito &Vector Control District announced today that further evidence of West Nile virus activity has been detected throughout Sacramento and Yolo counties  as  14 new mosquito samples and 4 birds  have tested positive for the disease. The birds and mosquito samples have been collected from widespread areas in Sacramento County.  “While we have not seen as much West Nile virus activity this year in comparison to 2012, with the summer season upon us, this will likely change” said David Brown District Manager. Yolo County is also starting to see West Nile virus activity and to date 5 mosquito samples and 2 dead birds have tested positive.
The increased activity comes as the region is getting a late rain storm which will create even more aquatic sites capable of producing mosquitoes. “The excess water will increase mosquito habitats. As temperatures warm up by the end of the week, the virus will likely amplify and the risk of human transmission will increase” said Brown. This week has also been declared National Mosquito Awareness Week by the American Mosquito Control Association (AMCA).  AMCA is an international organization of nearly 2,000 public health professionals dedicated to preserving the public’s health and well-being through safe, environmentally sound mosquito control programs since 1935.
In response to the recent findings, the District has started ground fogging (weather permitting) around areas where positive mosquitoes and birds have been found.
For current information about District activities, please visit Residents may also subscribe to mailing lists to receive email notifications for upcoming mosquito treatments by zip code. To sign up, go to Spray Notifications on the website.
2013 West Nile virus activity update:
Sacramento County:  7 dead birds and 19 mosquito samples have tested positive for West Nile virus to date. 1 human case has been reported by the California Department of Public Health.
Yolo County: 2 dead birds and 5 mosquito samples have tested positive for West Nile virus to date

Contact:  Luz Maria Rodriguez, Public Information Officer
Office:  916.405.2082 | Cell:  916.416.6337
Practice the District D’s of Mosquito Prevention: 
DRAIN standing water that may produce mosquitoes. 
DAWN and DUSK are times to avoid being outdoors.   
DRESS appropriately be wearing long sleeves and pants when outside. 
DEFEND yourself by using an effective insect repellent.  Make sure to follow label directions! 
DOOR and window screens should be in good working condition.
DISTRICT personnel are also available to address any mosquito problems. Call us at 800-429-1022 or visit