Placerville, CA – November 15, 2023
In a grim announcement, El Dorado County health officials have confirmed the first human death related to neuroinvasive West Nile Virus (WNV) this year. The individual, aged over 55 and residing on the West Slope of El Dorado County, succumbed to the virus at the end of October.
West Nile Virus, transmitted primarily through mosquito bites, affects humans, horses, and birds. While the majority of infected individuals show no symptoms, some, especially those over 60 or with specific medical conditions, can experience severe illness. Unfortunately, there is no specific treatment or vaccine for WNV, underscoring the importance of preventive measures.
El Dorado County has robust mosquito surveillance programs in place, involving activities like mosquito trapping, identifying, and treating neglected swimming pools. Medical providers are mandated to report all WNV cases to the El Dorado County Public Health Division, initiating coordinated efforts with the Environmental Management Department for surveillance activities.
To mitigate the risk of WNV, health officials offer the following preventative tips:
- Drain standing water around properties, and ensure water in swimming pools, ponds, and troughs is treated or circulating.
- Apply insect repellent with DEET or approved alternatives on exposed skin.
- Wear long sleeves and pants outdoors, particularly during dusk and dawn when mosquitoes are most active.
- Maintain tight-fitting screens on doors and windows.
- Report dead birds and tree squirrels to the State WNV hotline for proper investigation.
Residents are urged to report mosquito problems and neglected swimming pools to the Environmental Management Department. Additional information on West Nile Virus can be found at www.westnile.ca.gov or www.edcgov.us/emd. The El Dorado County community is reminded to remain vigilant and take necessary precautions to minimize the risk of WNV transmission.
