Last year, 36% of horses tested in North Dakota were positive for West Nile virus, a potentially deadly mosquito-borne infection that can also infect dogs. As mosquito season sets in, North Dakota veterinarians are reminding owners to protect horses and watch for signs of infection. Horses should have been vaccinated in April and May, and owners should consider using repellant on stables and animals, keeping horses inside when mosquitoes are abundant and removing any standing water, according to deputy state veterinarian Beth Carlson. "Animals that may be affected should be under the care of a veterinarian," Dr. Carlson added, saying supportive therapy is crucial to help animals recover.
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