Los Angeles County has confirmed the presence of the West Nile virus in mosquito populations, with the first positive sample collected from a mosquito trap in the Winnetka area of the San Fernando Valley. This early detection serves as a critical reminder for residents to take preventative actions to protect themselves from mosquito bites.

The Greater Los Angeles County Vector Control District emphasized the importance of proactive measures against mosquitoes, as the native Culex mosquito is capable of transmitting the West Nile virus, especially during dusk and dawn. With no human vaccine available for the virus, residents are advised to wear insect repellent containing active ingredients like DEET, Picaridin, IR3535, or Oil of Lemon Eucalyptus.

As the world faces the challenges of the ongoing coronavirus pandemic, Los Angeles County has reported its first two human cases of West Nile virus this season. While most individuals infected with the virus may only experience mild symptoms such as fever, muscle aches, and fatigue, those over 50 years old or with chronic medical conditions are at higher risk of severe illness that can affect the brain and spinal cord.

To prevent the spread of the virus, the GLACVCD recommends various steps including eliminating standing water in containers that can serve as breeding grounds for mosquitoes, maintaining swimming pools and ponds properly, and requesting mosquitofish for ornamental ponds. Additionally, residents are urged to report neglected swimming pools in their neighborhoods to the vector control district.