First West Nile Animal Case Confirmed in Minnesota

Minnesota has documented 23 human cases this year


MINNESOTA — The Board of Animal Health has confirmed the first case of West Nile virus in a Minnesota horse in more than a year.

It was diagnosed in a 33-year-old American quarter horse in the northwestern town of Euclid in Polk County.

The mare had poor coordination and weak hind legs when seen by a veterinarian October 9, but showed significant improvement with treatment within a week.

The horse had been vaccinated against the mosquito-borne disease.

Minnesota has documented 23 human cases this year.

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