Stay up to date on mosquito-borne virus activity within the District. Delta Mosquito and Vector Control District mosquitoes and dead birds for West Nile Virus (WNV), St. Louis Encephalitis Virus (SLEV), and Western Equine Encephalitis Virus (WEEV).
2021 Mosquito-borne Virus Activity in the District
LAST UPDATED: JUNE 18, 2021
West Nile Virus:11 St. Louis Encephalitis Virus: 0 Western Equine Encephalitis Virus: 0
There were 2 new WNV positive mosquito samples detected in Visalia. A total of 11 mosquito samples have tested positive in the District out of the 373 mosquito samples tested in 2021.
A sample may contain up to 50 individual mosquitoes.
West Nile Virus: 3 St. Louis Encephalitis Virus: 0 Western Equine Encephalitis Virus: 0
There was 1 dead birds that tested positive for WNV in Visalia. A total of 8 dead birds have been tested in 2021.
Report dead birds to the WNV call center at 1-877-968-2473. Dead birds may be testable for WNV, SLEV, and WEEV.
West Nile Virus: 0 St. Louis Encephalitis Virus: 0 Western Equine Encephalitis Virus: 0
No human cases of a mosquito-borne disease have been reported to Delta MVCD in 2021.
The Tulare County Public Health Department reports human cases to the District.
Service Request? Get in Touch.
1737 West Houston Ave
Visalia, CA. 93291
7:30 AM to 4 PM (excluding holidays)