North Carolina Horse Confirmed With WNV
The horse was unvaccinated for the potentially fatal mosquito-borne disease.
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Officials at the North Carolina Department of Agriculture and Consumer Services have confirmed a 6-year-old gelding from Union County with West Nile virus (WNV). | Photo: Wikimedia Commons
Officials at the North Carolina Department of Agriculture and Consumer Services (NCDACS) have confirmed a 6-year-old gelding from Union County with West Nile virus (WNV). The gelding was unvaccinated for the potentially fatal mosquito-borne disease.
About West Nile Virus
WNV transmission occurs when infected mosquitoes feed on animals, as well as humans, after having fed on infected birds.
Clinical signs of WNV in horses include:
- Mild anorexia and depression
- Fine and coarse muscle and skin fasciculation;
- Hyperesthesia (hypersensitivity to touch and sound);
- Changes in mentation (mentality), when horses look like they’re daydreaming or “just not with it”;
- Occasional drowsiness;
- Propulsive walking (driving or pushing forward, often without control);
- Spinal signs, including asymmetrical weakness; and
- Asymmetrical or symmetrical ataxia.
West Nile virus has no cure; however, some horses can recover with supportive care. Equine mortality rates can reach 30-40%. The American Association of Equine Practitioners includes WNV as one of the core diseases all horses should be vaccinated against at least annually.
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