ST. PAUL (AP) -- Tests for pseudorabies on 1,000 pigs in southwestern Minnesota have come back negative after the highly contagious livestock disease appeared in a Nobles County swine herd.
The test results, which came back Monday night, covered most of the 1,500 swine within six miles of the infected farm.
"Because pseudorabies is highly contagious, it is imperative the disease be contained," said Bill Hartmann, the state veterinarian.
The infected pigs were discovered on a farm on the eastern edge of Wilmont, near Worthington in Nobles County. About 800 pigs on the farm owned by Jim and Joan Joens have been quarantined and will be destroyed, even though test results on all of their animals were not complete.
The disease does not affect humans or food safety, said Paul Anderson, assistant director of the Minnesota Board of Animal Health.
Pseudorabies can kill swine, especially piglets, but more commonly causes reproductive problems and other conditions. The virus also is deadly to cattle, cats, dogs, sheep and goats.
Since January, when Iowa cleared up the last pseudorabies outbreak, the United States had been free of the disease in farm pigs, though it has remained endemic in wild boars in southern states.
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