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West Nile Virus Detected in Newbury Park Bird, Ventura County Authorities Intensify Mosquito Control Efforts

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Published on October 03, 2023
West Nile Virus Detected in Newbury Park Bird, Ventura County Authorities Intensify Mosquito Control EffortsSource: Wikipedia/Cynthia Goldsmith, P.E. Rollin, USCDCP, CC0, via Wikimedia Commons

Yesterday, the Ventura County Environmental Health Division confirmed the presence of West Nile Virus (WNV) in a bird located in Newbury Park, states the County of Ventura Post. The discovery has led to an intensification of mosquito control and surveillance to limit the dissemination of the virus.

WNV not only presents threats to human beings, but also to animals, particularly horses. Horse owners were therefore advised by the Division to speak with their veterinarians about WNV and how to stagnate its spread. Public reporting of wild bird deaths was also encouraged for monitoring WNV spread.

In response to, the Division's stated intent is to inspect and eradicate mosquito breeding sources in the Newbury Park area. They currently offer a mosquito complaint hotline, and provide mosquito-consumptive fish to the public for unused swimming pools, ornamental ponds, and similar bodies of water, in an effort to reduce mosquito numbers and subsequently, the risk of WNV transmission.

Alongside these efforts, to better avoid WNV exposure, the public was advised by the Division to practice several precautions as stated in the County of Ventura Post. These precautions include removal of standing water from properties, ensuring door and window screens are securely fitted and hole-less, donning long pants and long-sleeved shirts when outdoors, and applying insect repellent at dawn and dusk, those times when outside activity should be minimal.

Persisting mosquito populations mean ongoing threats of WNV and other diseases transmitted via mosquitoes. Similar WNV instances have been reported in other Californian areas in recent years. For example, ABC7 News reported in September 2022, that Contra Costa County mosquitoes had tested WNV-positive, inciting action from local mosquito control agencies.