Tests fail to rule out BSE in US sheep

12/04/2002

Preliminary tests have failed to rule out the possibility that two sheep seized last year from a Vermont farm carried Bovine Spongiform Encephalopathy (mad cow disease), the U.S. Department of Agriculture said yesterday.

Additional tests taking up to three years will now be carried out to determine whether the sheep suffered from the disease or the more common form of Transmissible Spongiform Encephalopathy (TSE), scrapie, which is harmless to humans.

The sheep were among 270 seized from two farms that had been imported from Belgium and the Netherlands, or were offspring of the imported sheep.