The U.S. Department of Agriculture said a Fresno Holstein discovered in April with mad cow disease was an isolated case and posed no threat to the food supply.
The mad cow that was recently discovered through routine testing in Central California had been euthanized after it became lame and started lying down at a dairy.
A spokesman for U.S. Rep. Devin Nunes of California said the sick 5-year-old came from Tulare County, the No. 1 dairy-producing county in the nation.
The first new case of mad cow disease in the U.S. since 2006 has been discovered in a dairy cow in California’s Central Valley, but health authorities said Tuesday the animal never was a threat to the nation’s food supply.
A Marin County resident has died from – and another infected with – a brain disease related to what is sometimes incorrectly referred to as ‘mad cow disease.’