First two birds test positive for West Nile virus in Yolo County


July 8, 2010


–Area of Concern Grows in South Sacramento

Elk Grove, Calif.— The Sacramento-Yolo Mosquito &Vector Control District announced today that West Nile Virus activity has spread to Yolo County. Two birds, one from Woodland and the other from West Sacramento have tested positive.  “Dead birds provide valuable information and help us see how the virus is moving” said David Brown, District Manager. “Since birds are the hosts of the virus, once they test positive, we typically also see infected mosquitoes”. In addition to this new activity, concern is growing over an urban area in South Sacramento where many infected mosquito samples have also been confirmed. “We are closely monitoring this zone as the virus is amplifying quickly and we need to be ready to respond” said Brown.

The District urges the public to do their part in reducing mosquitoes and protecting themselves to decrease the chances of contracting West Nile virus. “Inspecting your yard for standing water and wearing an effective insect repellent during times of peak mosquito activity continue to be your best line of defense.” said Brown.

In response to the recent findings, the District has increased its surveillance and will conduct ground fogging around areas where positive mosquitoes and birds have been found. For current information about any treatments planned, please visit our website Residents may also subscribe to receive email notifications for mosquito treatments by zip code.  To sign up go to Spray Notifications on the website.

2010 West Nile virus activity update:

Level  2–Sacramento County: 9 dead birds, 0 sentinel chickens, 18 mosquito samples have tested positive for West Nilevirus to date.

Level 2–Yolo County 2 dead birds, 0 sentinel chicken, 0 mosquito samples have tested positive for West Nile virus to date

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 them at 1-800-429-1022 or

Contact: Luz Maria Rodriguez, Public Information Officer

Office: 916.405.2082 | Cell: 916.416.6337