Three horses in Northern Nevada have tested positive for West Nile virus in the last two weeks. Not one was vaccinated.

Two horses were in Lyon County — one in Yerington and one in Dayton — and one horse was in Washoe County.

Nevada Department of Agriculture veterinarians say the best protection horse owners have is to vaccinate animals.

West Nile virus has been prevalent in Nevada since 2004. Residents can take precautions by eliminating mosquito-breeding sites around houses and barns, using insect repellents to fight the bite and keeping horses vaccinated.

— Lake Tahoe News staff report