On August 23, 2016, a three month old Andalusian colt in Fresno County, displaying severe neurologic signs was confirmed positive for West Nile Virus (WNV). The colt has died.
For 2016, a total of nine (9) horses have been confirmed positive for WNV. The positive horses are located in the following counties; Fresno(2), Calaveras, Riverside, Sacramento, San Diego, San Joaquin, Sutter and Ventura counties. All horses were not current on their WNV vaccinations. Three of the nine positive confirmed horses died or were euthanized.
CDFA continually monitors and investigates equine neurologic cases for the presence of WNV in California. CDFA urges horse owners to consult their veterinarian concerning a WNV vaccination program to ensure maximum protection of their horses.