Where was the first reported case of Bovine Spongiform Encephalopathy (mad cow disease) in the US traced back to?

The first reported case of Bovine Spongiform Encephalopathy (BSE), commonly known as mad cow disease, in the United States was traced back to Washington State. This case was significant as it marked the onset of increased scrutiny and regulatory measures concerning cattle health and food safety across the nation.

Washington was identified as the origin because it was in this state that the infected cow was discovered. Further investigations linked this case to the potential sources of prion contamination, highlighting the farming and feed practices in place at the time. The discovery prompted immediate actions from federal and state agricultural departments to contain the risk of transmission and protect both animal and public health.

Understanding the geographical context of this outbreak is crucial for comprehending the broader impacts of BSE on the cattle industry, international trade regulations, and food safety policies.