Los Angeles County has detected mosquitoes carrying the West Nile virus for the first time this year, thanks to the discovery made in the Winnetka neighborhood of the San Fernando Valley. The primary vector for West Nile virus in California is the culex mosquito, which contracts the virus from infected birds and transmits it to humans through bites. Symptoms of West Nile virus, experienced by about 20% of infected individuals, include fevers, headaches, body aches, nausea, skin rashes, and fatigue. Severe cases can lead to brain and spinal cord inflammation, particularly in people over 60. With no human vaccine available, the best protection is using insect repellent and wearing long sleeves and pants in mosquito-prone areas.

The Los Angeles Times noted that the case in Winnetka was caught early on and highlighted the importance of preventive measures. Residents are urged to protect themselves from mosquito bites and remove standing water around their homes to prevent mosquito breeding. Experts especially emphasize the importance of eliminating standing water in rain gutters, buckets, and planters, which can serve as mosquito breeding sites. Neglected swimming pools should be reported to local vector control for treatment.

California’s recent record-breaking rainfall may increase the mosquito population and the risk of West Nile virus. Last year, California recorded 461 human cases of West Nile virus, with 19 fatalities. This year, the state has already identified 25 mosquito samples carrying the virus, up from five at the same time last year, with a significant number found in Riverside County. Additionally, 17 dead birds have tested positive for the virus, an increase from 14 last year.

While total eradication of mosquitos is impossible, simple preventative measures, like protective outfits, mosquito repellent, and elimination of standing water, are critical to getting ahead of and eliminating the threat of mosquito-borne illnesses.