First Mosquito Sample Tests Positive for West Nile Virus

Release date: 
Jul 15
Cotati, CA.-The Marin/Sonoma Mosquito & Vector Control District (MSMVCD) has confirmed its first West Nile virus (WNv) positive mosquito sample for 2015. The mosquitoes were collected in the vicinity of Cypress Drive, South McDowell Boulevard, and the Ellis Creek Water Recycling Facility in Petaluma. 
Mosquito control operations will be conducted tonight at the water recycling facility to decrease the abundance of adult mosquitoes and to disrupt the virus transmission cycle. District staff will continue to monitor the area for additional virus activity and perform control operations, as necessary. 


"These findings confirm that West Nile virus is present in the local mosquito populations," stated Nizza Sequeira, Public Relations Director for the District. "It is imperative that residents take the threat of WNv seriously and protect themselves against mosquito bites," stressed Sequeira. 


Residents are urged to continue to report mosquito problems in their area to the Marin/Sonoma Mosquito & Vector control District at 707-285-2200 or online at  Most importantly, residents should use personal protection measures against mosquito bites. Wearing long sleeved shirts, long pants and applying an effective repellent to exposed skin will help reduce the risk of WNv transmission from an infected mosquito.