California Officials Diagnose 15th Horse With WNV
This is Tuolumne County’s first equine case of WNV for 2019. As of Oct. 11, 15 horses have tested positive in 12 California counties. | Photo: Wikimedia Commons
On Oct. 9, officials at the California Department of Food and Agriculture (CDFA) confirmed a 5-year-old Azteca gelding from Tuolumne County positive for West Nile virus (WNV). The gelding first showed clinical signs, including hypermetria (an exaggerated gait), irregular gait, and muscle loss, on Sept. 2. His vaccination status is not known, and he is reported as affected and alive.

This is Tuolumne County’s first equine case of WNV for 2019. As of Oct. 11, 15 horses have tested positive in 12 California counties.

About West Nile Virus

WNV transmission occurs when infected mosquitoes feed on animals, as well as humans, after having fed on infected birds

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