Media Releases

Record Public Service Requests for Anopheles Mosquitoes

January 31, 2024|

In the past week, we've received a record number of public service requests about mosquito activity. We appreciate our residents reporting unusually high mosquito activity in the county through our website and by phone. Our administrative and field staff have been working hard to respond quickly to your reports by returning calls and emails and conducting property inspections. Anopheles freeborni, the rice field [...]

District News Emails

Placer County Confirms First West Nile Virus Death Since 2018

November 6, 2023|

Placer County public health officials confirmed the first West Nile virus death this season, a Lincoln man over age 65. This is the first West Nile virus-related death in the county since 2018. There have been 286 confirmed human cases and 10 West Nile virus-related deaths reported in California this year. There are 6 confirmed human cases of West Nile [...]

Invasive Aedes aegypti Mosquitoes Found in Stanford Neighborhood of Roseville

October 13, 2023|

ROSEVILLE, October 13, 2023 -  The Placer Mosquito and Vector Control District detected invasive Aedes aegypti mosquitoes in a new area of Roseville this week. Aedes aegypti mosquitoes, commonly known as the yellow fever mosquitoes, were found in the Stanford neighborhood of Roseville. Aedes aegypti mosquitoes have been spreading throughout California since 2013. This mosquito is small with black and white [...]

Mosquitoes in Placer County Test Positive for St. Louis Encephalitis Virus

September 13, 2023|

This is the first time since 2017 that mosquitoes in Placer County have tested positive for SLEV ROSEVILLE, Calif., September 13, 2023 – The Placer Mosquito and Vector Control District detected St. Louis Encephalitis virus (SLEV) in a mosquito sample near the Lincoln Airport. This is only the second time SLEV has ever been detected in a mosquito in Placer [...]

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